HG/T 20592  法兰盖 BL 100-40 RF-16RF00 RF Sch1601

BL100-40 RF-16RF00 RF Sch1601

SO300-150RF00c0RhGF/F D=20

LWN 40-300 RF Sch6030-0.25 RB

pl450A-10RF.046000-1500

WN 25-300 RF B=10

bl32-900 fm2.5/foru

wn 40(b)-100 rf b1

PL40-10FF60R RF Sch4080S.1f s2

PL200(a)-10RF0 RF B=77

WN65(B)-63 RF5/.2.6/�ã /dat