HG/T 20592  法兰盖 BL 40-16 RF.5rf FF0.61500RF4=4 S5 RJ-

bl40-16rf.5rf FF0.61500RF4=4 S5 RJ-

SOP FF 5K 32AbHF-16 F10RFR.(B)-25MF

LJ 1"-300 RF Sch406um.html RF SCH4046

2 A1 Sch126n15 wn(B)-�

DN60-PN63 PL RF IIG/10

1 C-RF500-1.0DR1

DN65-PN16 BL RF Ⅱ=ot;-300 RF B=Sc1=3 L=22

WN 450(B)-25 RF S=4.5

WN 4