Hebei Yangyong Pipeline Equipment Manufacturing Co.,Ltd., is one designated professional designer and manufacturer of stainless flexible hose, bellows compensator, power plant dedicated device, polytetrafluoroethylene pipe and flue or chimney device parts and fixtures. The company covers 20000 square meters, equips 3600-ton bellows former, automatic bellows production line and some other updated manufacturing equipments, machining installations and testing apparatuses 100 sets, 418 staff, 100 of whom are engineers and technicians. We administer our enterprise strictly in accordance with ISO 9001:2000 and all steps of design, produce and test meet the requirements of "GBIT12777" -99,"GB12459-90" and "EGM12" released by American Expansion Joints Manufacturer Associion.