ANSI B16.5 Carbon/Stainless Steel Flanges 300/600/900 Forged Flange

ANSI B16.5 Carbon/Stainless Steel Flanges 300/600/900 Forged Flange

A circular groove is opened in the middle of the two flanges, the metal ring is placed in, the two flanges are hit hard, and the flange is hard connected.