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·Special seals for general purpose machinery cylinder：USH，UPH，IDI，ISI，OSI，UPI，SPG，LBI，LBH
。
·Special construction machinery seals：DKB，DKBI，IDI，ISI，IUH，BRT，HBY，HBTS，HBTY，SPGW，SPGO，KZT，WR，ROI，IUI，IUY，X-RING，STEP-SEAL，LPI，DSI，RYT，OUY
。 |
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·Special Seal for hydraulic
 pump：TCV，TCN。
·Special Seal for engines,
Steering Gear, gearboxes, shock absorbers：TC，TC3，TB，HTC，HTC3，HTC5，HTC9，SCY，SCJY。
·Special Seal for agricultural machinery：QLNY，QLFY，QLN，QLF，Y
。
·Special Seal for construction machinery such as excavators and breakers：DB，TAY，VB，OUY，TC
Special Seal for general
machinery：TC，TB，SC，SB，VC，TCV，TCN
。
·Special Seal for metallurgical industry：SB，MOY，MG，TC，TB，SC，MO，WT，YOY，Y，VR，ZF，SPGD，SPND，OKC3
。 |
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| ·GM O-rings：P，G，AS |
·Special O-ring for hydraulic solenoid valve |
| ·New refrigerant special O-rings：H-NBR |
·Special O-rings for Aviation |
| ·High temperature and high pressure O-rings：ORI，4DP，4DG。 |
·Special O-rings for Semiconductor |
| ·special O-rings for Petrochemical (per fluorocarbons) |
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