
Wenzhou Yonghai Stainless Steel Co., Ltd. is a professional manufacturer of industrial fluid stainless steel welded steel pipes, located in Wenzhou, Chinas stainless steel pipe production base. Our company has introduced a complete set of welded pipe production lines from abroad, combined with our research and development of internal and external welding technology and equipment. Our products are strictly produced in accordance with Chinese GB12771, American AST M, IS0, Japanese JIS, German DIN, and Australian AS1528 standards. The product quality control adopts the ISO9001 quality certification management mode, and is equipped with multi cathode welding, solid solution heat treatment, online eddy current testing, water pressure testing, material mechanical and process performance, and metallographic testing.