Chengdu Xinxin High Strength Fastener Manufacturer Co., Ltd
XQ Fastener, the first manufacturer obtaining API 20E, BSL-3 in China, has been dedicated to manufacturing of high strength bolting for nearly 25 years. We also hold ISO 9001:2015, PED 2014/68/EU and AD 2000 certificates. Our products are widely used in wellhead equipment, Christmas tree, blowout preventer and piping etc. in oil and gas industry.