NB/T 47022  法兰 C-G 700-4.0/20δ1=0-,S5-8

2 CG 700-4.020δ1=0-,S5-8

WN125-300T S

47021 FM800-0.6 δ=488 sR01

WN20-150 RF00p0-1

WN 50-150 RF B=9150 RF S

LWN 40-150RFhs5=8FB/п4h40RF16-10F

BI 600CH01R=.1 WN100

so40(B)-10RFf BBrfR

WN200(B)-40FFfs.

wn80-16ff5300j&FFC25F2.5H60.5 RF55000ch80S0h4F