GB/T 12459  弯头 DN 1400-Ⅱ-Sch10S90EL140T= D

PL50(B)-16 RF D=155 d=1020-60

DN 1400-Ⅱ-Sch10S 90EL140T= D

WN25-16 rjmpampampamp;ampnbsp.5 S

HG/T20592 WN100(A)-100M8Sc1

WN 1 1/4"-300 RF S=4

LWN 50-300 RF Sch

3fm2600-0.6ch80SF

IF 10-63 FMF TfF8"r17nifrf

47065.1-2018 A 120

LWN40-150 RFSC