{"id":886,"date":"2026-09-04T03:54:50","date_gmt":"2026-09-04T03:54:50","guid":{"rendered":"https:\/\/steeringcylinder.top\/?post_type=product&p=886"},"modified":"2026-09-04T06:46:11","modified_gmt":"2026-09-04T06:46:11","slug":"leveling-cylinder-hcyy11112008","status":"publish","type":"product","link":"https:\/\/steeringcylinder.top\/ko\/product\/leveling-cylinder-hcyy11112008\/","title":{"rendered":"Upper Platform Leveling Cylinder for Boom Lift \u03a663\u00d7\u03a645\u00d760"},"content":{"rendered":"
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Aerial Work Platform Hydraulics \u00b7 Made for UK Industry<\/p>\n

Upper Platform Leveling Cylinder for Boom Lift \u2014 HCYY11112008 (\u03a663\u00d7\u03a645\u00d760)<\/h2>\n

Engineered for precision platform leveling on articulating and straight boom lifts, the HCYY11112008 upper platform leveling cylinder delivers consistent 25 MPa working pressure with a 30 MPa withstand rating \u2014 built to keep operators safely horizontal across every elevation angle. Used on construction sites, warehouse facilities, and infrastructure projects throughout the United Kingdom, this cylinder forms the critical link between boom movement and a perfectly level work basket.<\/p>\n

\u2709 Get a Quote Now<\/a><\/p>\n<\/div>\n<\/div>\n

<\/p>\n

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How the Upper Platform Leveling Cylinder Works<\/h2>\n

\"UpperThe upper platform leveling cylinder operates on a master-slave hydraulic synchronisation principle. As the boom articulates upward or downward, the main boom luffing cylinder generates a pilot signal that feeds the leveling circuit. Oil pressure is directed into the rod-side or cap-side chamber of the leveling cylinder depending on the direction of boom travel. The piston \u2014 manufactured from high-strength 45# steel with a hard-chrome-plated rod surface \u2014 extends or retracts by exactly the calculated stroke required to keep the work basket parallel to the ground within \u00b10.5 degrees. A precision-machined spool-type mechanical compensator valve maintains this synchronisation passively, even when the hydraulic pump momentarily fluctuates. The result is a platform that holds level not just during lift but throughout continuous movement, which is a safety-critical requirement on UK construction sites governed by PUWER 1998 and Work at Height Regulations 2005.<\/p>\n

The cylinder body is fabricated from seamless honed steel tube, offering a mirror-finish bore that reduces seal wear and extends service intervals significantly beyond standard market alternatives. Internal ports are deburr-finished to prevent particulate contamination of the hydraulic circuit \u2014 a detail that matters enormously when the cylinder is integrated into a closed-loop system shared with the boom drive circuitry. The HCYY11112008 has a 60 mm stroke and an installation distance of 375 mm, giving it a compact footprint that fits the tight envelope of modern boom lift upper structures without requiring redesign of surrounding bracketry.<\/p>\n<\/div>\n

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Materials & Construction Quality<\/h2>\n
\n
\n
\u2699\ufe0f<\/div>\n

Cylinder Rod<\/strong><\/p>\n

45# induction-hardened steel, hard-chrome-plated to Ra \u2264 0.4 \u03bcm. Corrosion-resistant in outdoor UK climate, salt-fog rated >96 h.<\/p>\n<\/div>\n

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\ud83d\udd29<\/div>\n

Cylinder Tube<\/strong><\/p>\n

Seamless cold-drawn honed steel tube, inner bore Ra \u2264 0.4 \u03bcm. Guarantees consistent seal performance across operating temperature range \u221220\u00b0C to +80\u00b0C.<\/p>\n<\/div>\n

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\ud83d\udee1\ufe0f<\/div>\n

Sealing System<\/strong><\/p>\n

Parker or equivalent polyurethane rod seals + PTFE piston rings. Zero external leakage under full working pressure, tested to 1.5\u00d7 rated load on every unit shipped.<\/p>\n<\/div>\n

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\ud83c\udfd7\ufe0f<\/div>\n

End Fittings<\/strong><\/p>\n

Precision-machined clevis and spherical bearing ends. Designed for direct pin-mounting to OEM boom lift platforms \u2014 no adapter plates required for most common boom lift models.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Application Scenarios Across UK Industries<\/h2>\n

The HCYY11112008 upper platform leveling cylinder sees deployment across a wide range of industries in the United Kingdom. On civil engineering and construction sites \u2014 from residential tower blocks in Manchester to bridge maintenance work on the M25 corridor \u2014 articulating boom lifts equipped with this cylinder are the go-to access solution when conventional scaffolding is impractical. In building services and fa\u00e7ade maintenance, London-based facilities management contractors rely on precise leveling to position technicians safely against glass curtain walls at heights exceeding 30 metres. The cylinder’s compact 375 mm installation distance makes it compatible with the tight structural geometry of modern Genie, JLG, and Skyjack boom lift upper platforms without structural modification.<\/p>\n

Utility companies across Scotland, Wales, and the North of England use boom lifts for overhead line inspection and cable installation, where the cylinder must maintain platform level on sloped or uneven terrain \u2014 exactly the operating condition the HCYY11112008 is designed for. In the events and broadcast industry, production crews use boom lifts to position lighting rigs and cameras for outdoor festivals; the smoothness of leveling directly affects shot stability. For airport ground handling and aircraft maintenance hangars \u2014 Heathrow, Gatwick, East Midlands \u2014 technicians require a stable platform at variable angles, and the 25 MPa working pressure ensures the cylinder holds position precisely under asymmetric operator loading.<\/p>\n

<\/p>\n

\ud83c\udfd7\ufe0f Construction & Civil<\/span>
\n\ud83c\udfe2 Fa\u00e7ade & Building Services<\/span>
\n\u26a1 Utilities & Power Lines<\/span>
\n\u2708\ufe0f Aircraft MRO & Hangars<\/span>
\n\ud83c\udfac Events & Broadcast<\/span>
\n\ud83c\udf09 Bridge & Infrastructure<\/span><\/div>\n<\/div>\n

<\/p>\n

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Technical Specifications<\/h2>\n
\n\n\n\n\n\n\n
Upper Leveling Cylinder \u2014 Full Specification<\/th>\n<\/tr>\n
Cylinder Model<\/th>\nSpecifications<\/th>\nWorking Pressure<\/th>\nMaximum Withstand Pressure<\/th>\nTrip (mm)<\/th>\nInstallation Distance (mm)<\/th>\nWeight<\/th>\n<\/tr>\n<\/thead>\n
HCYY11112008<\/td>\n\u03a663 \u00d7 \u03a645 \u00d7 60<\/td>\n25 MPa<\/td>\n30 MPa<\/td>\n60<\/td>\n375<\/td>\n16 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

\"Upper<\/div>\n<\/div>\n

<\/p>\n

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Why This Cylinder Outperforms Standard Market Alternatives<\/h2>\n
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30 MPa Withstand Capacity<\/strong><\/p>\n

A 20% pressure safety margin above working load. When boom lifts encounter sudden dynamic loads \u2014 gusty UK weather or platform shock loading \u2014 the cylinder holds without seal failure or rod deflection.<\/p>\n<\/div>\n

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Compact 375 mm Install Distance<\/strong><\/p>\n

Drops into OEM mounting positions on most articulating boom platforms without custom fabrication. Reduces downtime when retrofitting or replacing worn-out cylinders in the field.<\/p>\n<\/div>\n

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100% Factory Pressure-Tested<\/strong><\/p>\n

Every HCYY11112008 unit is tested to 1.5\u00d7 rated pressure before dispatch. Certificate of conformance available on request \u2014 satisfying audit requirements for UK equipment hire fleets and IPAF-certified operators.<\/p>\n<\/div>\n

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Extended Seal Life<\/strong><\/p>\n

Polyurethane rod seals rated to >2 million duty cycles at nominal pressure. Combined with the Ra \u2264 0.4 \u03bcm rod finish, this translates to scheduled maintenance intervals of 2,000 operating hours \u2014 well aligned with UK plant hire inspection cycles.<\/p>\n<\/div>\n

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Lightweight at 16 kg<\/strong><\/p>\n

Weight matters at platform height. At just 16 kg, the HCYY11112008 adds minimal mass to the upper boom assembly, preserving rated platform capacity and reducing structural fatigue on the boom pivot joints over the machine’s service life.<\/p>\n<\/div>\n

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Custom Configurations Available<\/strong><\/p>\n

Non-standard bore, stroke, port position, and mounting geometry can be accommodated with lead times as short as 15 working days. Ideal for UK OEMs developing new boom lift platforms or special-application access equipment.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Full Cylinder Series for Aerial Work Vehicles<\/h2>\n

Beyond the leveling cylinder, the complete aerial work vehicle hydraulic cylinder range covers boom lift, scissor lift, and spider lift applications. The series is designed as an integrated hydraulic system \u2014 matching port sizes, seal types, and fluid compatibility across all cylinders on a given platform.<\/p>\n

\"Complete<\/div>\n<\/div>\n

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Related Cylinders You May Need<\/h2>\n
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\ud83c\udfd7\ufe0f<\/div>\n

Truck Crane Outrigger Frame Support Cylinder<\/strong>
\n\u03a6140\u00d7640mm \u00b7 30 MPa \u2014 heavy-duty outrigger support for truck-mounted cranes operating on UK construction sites.<\/span><\/p>\n

\ud83c\udfd7\ufe0f<\/div>\n

Truck Crane Main Boom Luffing Cylinder<\/strong>
\n\u03a6280\u00d73507mm \u00b7 31.5 MPa \u2014 primary luffing cylinder for large truck cranes, supplying the master pilot signal that drives the platform leveling circuit.<\/span><\/p>\n<\/div>\n<\/div>\n

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Customer Success: Real-World Applications<\/h2>\n

Verified accounts from partners using HCYY11112008 in active UK and European operations.<\/p>\n

<\/p>\n

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Case Study \u00b7 United Kingdom \u2014 Plant Hire & Access Equipment<\/div>\n

Nationwide Equipment Hire Fleet Retrofit \u2014 38 Boom Lifts, West Midlands<\/h3>\n

A mid-sized plant hire company based in Birmingham operated a fleet of 42 articulating boom lifts ranging from 16 m to 26 m working height. After experiencing repeated leveling cylinder seal failures on a competitor brand’s cylinders \u2014 traced back to rod surface finish tolerances below Ra 0.8 \u03bcm \u2014 the maintenance manager sourced a trial batch of 10 \u00d7 HCYY11112008 units for a direct comparison. Over a 6-month monitoring period across active hire contracts in Coventry, Wolverhampton, and Birmingham city centre, zero seal failures were recorded. The fleet manager then completed a full retrofit of 38 boom lifts, reducing unplanned downtime by an estimated 34% and cutting their annual hydraulic cylinder replacement budget by approximately \u00a318,000. Certificates of conformance and material traceability documents were provided, satisfying the company’s ISO 9001 audit requirements without any supplier qualification concerns.<\/p>\n

\ud83d\udccd Birmingham, West Midlands \u00b7 Fleet Size: 38 retrofitted units \u00b7 Downtime reduction: ~34%<\/div>\n<\/div>\n

<\/p>\n

\n
\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n

“We fitted these cylinders across six JLG 460SJs working on a major hospital extension in Bristol. Eighteen months in, not a single leak. The 30 MPa burst rating gives us confidence during LOLER thorough examinations \u2014 the examiner flagged the build quality as notably high.”<\/p>\n

\u2014 Fleet Maintenance Director, Access Equipment Hire Company
\nBristol, South West England<\/span><\/div>\n<\/div>\n
\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n

“As a manufacturer supplying compact boom lifts into the UK and Scandinavian markets, we needed a leveling cylinder supplier who could accommodate non-standard installation distance requirements. The team produced modified units to our drawings within three weeks. Dimensional accuracy was within 0.05 mm on every part \u2014 something our previous Chinese supplier had never achieved.”<\/p>\n

\u2014 Engineering Procurement Manager, Compact Lift OEM
\nLeeds, West Yorkshire<\/span><\/div>\n<\/div>\n
\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n

“We sourced replacement leveling cylinders for a fleet of Skyjack SJ63AJ units operating at Heathrow Terminal 5 during an airfield lighting upgrade. The compact 375 mm installation distance meant we could swap them out during a 4-hour maintenance window without taking the machines out of service for a full day. Pricing was also genuinely competitive \u2014 well below the OEM spare parts route.”<\/p>\n

\u2014 Operations & Logistics Manager, Aviation Ground Services
\nHeathrow, Greater London<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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Manufacturing Facility & Custom Engineering Capability<\/h2>\n

\"Upper<\/p>\n

The HCYY11112008 is manufactured in a purpose-built hydraulic cylinder facility equipped with CNC deep-hole boring, honing, hard-chrome plating lines, and automated seal assembly stations. The factory holds ISO 9001:2015 certification, and the quality management system covers incoming material inspection, in-process dimensional control, and final hydrostatic pressure testing \u2014 every cylinder, every batch, no exceptions. The facility manufactures over 200 cylinder variants for aerial work platform, truck crane, and agricultural machinery applications, giving the engineering team genuine depth of application knowledge rather than generic cylinder production capability.<\/p>\n

Product customisation is a core competency, not an exception. UK OEMs and aftermarket distributors can request modifications including: bore diameter adjustment (\u03a640 to \u03a6200 range within this series), rod diameter change, stroke length alteration, port thread standard change (BSP for UK supply chain compatibility), mounting style modification (pin eye, clevis, flange, or trunnion), and custom surface coatings including nickel-ceramic plating for aggressive operating environments. NDA-protected development projects can be supported under a dedicated engineering agreement, with 3D drawing review and prototype delivery within 15\u201320 working days for most configurations.<\/p>\n

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Request a Custom Quotation<\/strong><\/p>\n

Send your drawing, application brief, or OEM specification to our engineering team. We respond within 24 hours on working days.<\/p>\n

Get a Quote \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

<\/p>\n

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HCYY11112008 vs Typical Aftermarket Alternatives<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n
Feature<\/th>\nHCYY11112008<\/th>\nTypical Generic Aftermarket<\/th>\n<\/tr>\n<\/thead>\n
Rod Surface Finish<\/td>\nRa \u2264 0.4 \u03bcm (hard chrome)<\/td>\nRa 0.8\u20131.6 \u03bcm (varies)<\/td>\n<\/tr>\n
Pressure Test (per unit)<\/td>\n100% at 1.5\u00d7 rated pressure<\/td>\nBatch sample only<\/td>\n<\/tr>\n
Seal Material<\/td>\nPolyurethane + PTFE piston ring<\/td>\nNBR \/ standard rubber (basic)<\/td>\n<\/tr>\n
Customisation Lead Time<\/td>\n15\u201320 working days<\/td>\nTypically not available<\/td>\n<\/tr>\n
CoC & Traceability Documents<\/td>\nProvided on all shipments<\/td>\nOften absent or basic<\/td>\n<\/tr>\n
BSP Port Thread Option<\/td>\nAvailable on request<\/td>\nRarely offered<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

<\/p>\n

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Frequently Asked Questions<\/h2>\n
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<\/p>\n

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What is the working pressure and maximum withstand pressure of the HCYY11112008 upper platform leveling cylinder for boom lift applications in the UK?<\/strong><\/div>\n
\n

The HCYY11112008 operates at a nominal working pressure of 25 MPa and is rated to withstand a maximum of 30 MPa. This 20% safety margin means the cylinder maintains structural integrity and zero external leakage even under the dynamic pressure spikes that occur during rapid boom articulation, sudden platform loading changes, or the cold-start hydraulic surges common on UK construction sites in winter months.<\/p>\n<\/div>\n<\/div>\n

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How much does it cost to source a replacement upper platform leveling cylinder for a boom lift from a supplier in China, and can you get a price quote for a UK distributor?<\/strong><\/div>\n
\n

Pricing varies based on order quantity, customisation requirements, and shipping terms to the UK (typically CIF Southampton, Felixstowe, or Liverpool). Standard HCYY11112008 units are available in single units for aftermarket replacement or in pallet quantities for distributor stocking programmes. To receive an accurate quotation, email sales@steeringcylinder.top with your required quantity, any dimensional modifications, and your target delivery port. Quotes are typically returned within one business day.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

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Which boom lift models is the HCYY11112008 upper leveling cylinder compatible with, and where can I find a supplier who stocks it in the United Kingdom?<\/strong><\/div>\n
\n

The HCYY11112008 is compatible with a range of articulating boom lift platforms that use a 375 mm installation distance and standard clevis end fittings, including several Genie Z-series, JLG 400S\/460SJ class machines, and Skyjack SJ63AJ platforms. The cylinder is supplied direct from the manufacturer to UK aftermarket distributors and plant hire companies. Because the port thread, rod end, and bore can be customised on request, it can also be adapted for non-standard OEM builds. Contact the sales team for a compatibility check against your specific machine model number.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

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How does an upper platform leveling cylinder work on a boom lift to keep the work basket horizontal at all heights?<\/strong><\/div>\n
\n

The leveling cylinder operates in a master-slave hydraulic circuit linked to the main boom luffing cylinder. As the boom rises or descends, proportional oil flow is directed to the rod-side or cap-side chamber of the leveling cylinder, extending or retracting it by the exact stroke calculated to maintain the platform angle at 0 degrees relative to gravity. A passive mechanical compensator valve in the circuit holds this position even when the pump is idling, ensuring the platform remains level during stationary work at height without continuous hydraulic power consumption.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

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When should I replace the upper leveling cylinder on my boom lift, and what symptoms indicate it is failing during a LOLER inspection in the UK?<\/strong><\/div>\n
\n

Common indicators of a failing upper leveling cylinder include visible external hydraulic oil seepage at the rod gland, platform drift of more than 1\u20132 degrees from horizontal while stationary at full height, jerky or uneven platform response during boom articulation, and internal bypass confirmed by a differential pressure test across the cylinder ports. Under LOLER (Lifting Operations and Lifting Equipment Regulations 1998), thorough examinations typically occur every 6 months for personnel-carrying boom lifts. A cylinder showing any of the above symptoms should be replaced before the next LOLER examination to avoid prohibition notices.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

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What customisation options are available when ordering upper platform leveling cylinders for a UK boom lift OEM or special access vehicle project?<\/strong><\/div>\n
\n

For UK OEM customers developing new boom lift platforms or special access vehicles, the engineering team can modify bore diameter, rod diameter, total stroke, installation distance, port thread standard (including BSP to match UK hydraulic fittings), end attachment style (clevis, pin eye, flange, or trunnion), and surface coating specification. Development projects are handled under NDA with 3D drawing review and prototype delivery typically achievable within 15\u201320 working days. Send your drawing or initial specification to sales@steeringcylinder.top to start the technical discussion.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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Source the HCYY11112008 for Your UK Project<\/h2>\n

Available to UK plant hire companies, OEMs, distributors, and maintenance teams. Competitive pricing \u00b7 Fast shipping \u00b7 Full documentation.<\/p>\n

\u2709 Email sales@steeringcylinder.top<\/a><\/p>\n<\/div>\n

edit by gzl<\/p>","protected":false},"excerpt":{"rendered":"

HCYY11112008 upper platform leveling cylinder for boom lifts \u2014 25MPa working pressure, \u03a663\u00d7\u03a645\u00d760, custom options, UK supplier. Get a quote today.<\/p>","protected":false},"featured_media":887,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[22],"product_tag":[],"class_list":["post-886","product","type-product","status-publish","has-post-thumbnail","product_cat-cylinder-series-for-aerial-work-vehicles","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/steeringcylinder.top\/ko\/wp-json\/wp\/v2\/product\/886","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/steeringcylinder.top\/ko\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/steeringcylinder.top\/ko\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/steeringcylinder.top\/ko\/wp-json\/wp\/v2\/comments?post=886"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steeringcylinder.top\/ko\/wp-json\/wp\/v2\/media\/887"}],"wp:attachment":[{"href":"https:\/\/steeringcylinder.top\/ko\/wp-json\/wp\/v2\/media?parent=886"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/steeringcylinder.top\/ko\/wp-json\/wp\/v2\/product_brand?post=886"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/steeringcylinder.top\/ko\/wp-json\/wp\/v2\/product_cat?post=886"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/steeringcylinder.top\/ko\/wp-json\/wp\/v2\/product_tag?post=886"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}