GB/T 12459  弯头 DN 100-Sch4090ELRru=4 h/04

DN 100-Sch40 90ELRru=4 h/04

LWN 25-300 RF Sch120mF00 RF SchFm).6FbRh45-ampampamp

BL125-25RF6RF°RF200EL-10rfRF Sch4000-S1-63 RF1

pl65(b)-10 ff d=178 b1=70 c/

WN 50(A)-16 RF Sc

aasmeb16.5wn80-300rf SCH=/.06F Sch40

PL40(B)-16RF S=3.

A 260008H80 RFFF

LW