弯头 DN 500-Sch4090EL

DN 500-Sch40 90EL

WN 32(B)-63 RF S=3

WN 65(B)-25 RFF-16200(B)-25FM1/

WN 25-900 RF S=10700-2.5 ãžâ0-1.6/38-94m RF

wn50-900 rfvlet/in3.5 H1=8

BL80(B)-63 RF

1 FM 450-0.610=385F S=12.5FM

47022 c-g1000-1.6 δ1=10 h=1206F

PL 350(B)-6 RFb)-188 8P R0RFrf