HG/T 20592  法兰 PL 125-16 RFF B=M/0 RF BG Sch160740SRF=10S.

PL125(A)-16RFF B=M/0 RF BG Sch160740SRF=10S.

WN300-25 RF

47023 C-RF400-1.6F S=8=4.54/62-126B)-16

WN40(B)-160 M S=10h=186fpquotFb=4-9

PL450(B)-25 RF-1.

pl250-25 ffh40 δ1=a)-

WN100-300 RF B=155 H=/09Sa60

WN20-900 RFSC m400-10rf=3m1001www.

wn250-600 rf