突面(RF)-带颈对焊钢制夹套法兰

RF--Weldneck Jacket Flange

凸面(M)-带颈对焊钢制夹套法兰

M-Weldneck Jacket Flange

凹面 (FM)-带颈对焊钢制夹套法兰

FM-Weldneck Jacket Flange

榫面(T)-带颈对焊钢制夹套法兰

T-Weldneck Jacket Flange

槽面(G)-带颈对焊钢制夹套法兰

G-Weldneck Jacket Flange