HG/T 20592  法兰 PL 300-16 FF D=460 K=410

PL300-16FF D=460 K=410

PL200B)-6 RF0540SFcFF¬Â¢RF5ffs=0S Ca)-10.RF

SO 100(B)-150RF.90F S/10.7 RFF2.9F-0.25Mn216RF5 h

DN700-PN16 SO RF B=711 B=61.5F Ⅱ

PL80(B)-16 RFRF1)-1/ rf s=4 d=157/Y-1

BL150-300 RF36RF S=D=27=260RF S=4mmRFch1)-10/0FMFRF0r.FM