HG/T 20592  法兰盖 BL 150-16 RF40Sp)s=56 h

BL 150-16 RF40Sp)s=56 h

DN15-PN10 PL RF Ⅱ15-f

3 M 1300-0.6 δ0=10

PL400(A)-10 FF B1=417

WN150-300 RF Sch40)-25 RFh41.RF�LT SCH400 R600rjampampampa00 Rsch4RF82@RF1.-16

wn65 -900m05 RF00(A)-150

PL25(B)-16 RF

abl1350-150rfÃ10Sch4�p)5 s RF RJ40mp