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weld neck flat face flanges
1. Standard: ASME, ANSI, API, JIS, JPI, DIN, UNI, BS, AS
2. Material: A105, A105N,20Mn.
weld neck flat face flanges
1. Standard: ASME, ANSI, API, JIS, JPI, DIN, UNI, BS, AS
2. Material: A105, A105N,20Mn.