GB/T 12459  管帽 DN 900-Sch20CF/

DN 900-Sch20 CF/

IF 40-25 FM

SW25-150RF S=787

IF 32-25 FM

WN200-300 RF Sch40

SO 250(B)-10 RF b=3

PL 100(B)-16 RF60���RF/hfF50 RF0RF8@R0 RF120.5-R@W110Mu2.5 RJ-RF SCH80RF/@5@0�2059200-1am��JsR

IF 25-25 FM

BL600-10RF6 RFFmpam

SO 250(B)-16 R