HG/T 20592  法兰盖 BL 500-6 G½10s=6Sch

bl500-6g½10s=6Sch

WN 40(B)-25 M-1.6/b=3RFRF700-1.=135

PL 20(B)-16 RF6=-195 h=umWN2Fh125-16rf s=4.0F

B WN 30"-900 RF B=762

47023 FM900-4.0 H=17

wn100(b)-63 fm s/6 d=1

1 FM600-1=1456F09

HP-2 я▐Б√└п▒Б┬≥Б∙�

pl125(a)-16 ff ar.6/