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Hengtong expansion joint manufacturing Co., Ltd. was established in 2001, mainly researching, developing and manufacturing bellows expansion joints. It has obtained the certification of TS, ASME, PED, CCS, ABS, BV, Kr and DNV of Norway. Material of expansion joint: black metal material, stainless steel material, duplex steel, Hastelloy alloy, nickel and nickel base alloy, titanium and titanium base alloy, zirconium and zirconium base alloy, tantalum and tantalum base alloy, niobium and niobium base alloy and other materials expansion joint.

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