HG/T 20592  法兰 PL 80(B)-16 FF0S25 F RF0RF,Sc5SC106

PL 80(B)-16 FF0S25 F RF0RF,Sc5SC106

WN15-600G5 M S/12

bi550-s δ4=10-12

wn450(b)-150 rfs6F=601.6=3.5

A WN 700-900 RF S=10

LWN 50-150 RFF512b)-16 rf000 K

pl400(a)-10rf1001รƒ

WN250-300 RF Sch40su00c05921.0-15

BL80-1500 RJ Sc0 FF 1-1.0 Ш°В�

WN