HG/T 20592  法兰盖 BL 40-40 RF0-=13012S0592

BL40-40RF0-=13012S0592

47023 FM1100-1.6 S=1411��

PL50(B)-16RF BL1¦ 1500-s/@

nb=t47021 fm450-1R RF

LWN25-150RF B=27 H=161

WN 15-150 RF S=5 B=1000100-

WN200-150 RFM700-9-

so125(a)-16 rf b=3

3 RF 500-6.4 δ=73 H=145

wn150-300 rfаёё�