RuiAn RuiFeng Flange Co., Ltd. is one of professional enterprises specializing in forged flanges and forged rings. Our entire flanges are designed and manufactured according to ASME (ANSI), API, MSS, AWWA, BS, DIN, and JIS standards. The material of flanges and rings are Stainless Steel, Carbon Steel, Alloy Steel--20#, A105, Q235A, 301, 304, 304L, 316, 316L and so on. We provide forged rings and bearing rings according to customers' drawing and requirements.