NB/T 47023  法兰 FM 2000-1)-15/60S=2S

3 FM 2000-1)-15/60S=2S

PL125(B)-10RF625

法兰wn 25-300 rf s=540(B)

WN250(A)-2500RJп╟п÷п╒п┴п╟п▒я┌б∙б≤п╟п÷я┌б∙б═п╟б▒я┌б┬б≥я�

PL500-10RFFrjF5/

wn 15-300 m0b0250F2.54.0- scM16

WN400-900FM)-16RF50