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For wellhead casing head, tubing hanger, JST provides elastomer seals including FS-seal, S-Seal, P-Seal, O-Ring, MEC metal end-cap seal, lockdown screw packing, pack off slip seal, BX ring, C ring, and develop the HNBR, FKM, AFLAS and other compounds accordingly. The materials have high pressure resistance, good sealing characteristics and passed H2S immersion test and API 6A NORSOK M710 RGD/ AED test.
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