GB/T 12459  偏心异径管 DN 80×65-Sch10SRE δ

DN 80×65-Sch10S RE δ

pl40(A)-10FF)00 RJnFFR

WN50-1500 RJ B=45

WN100(B)-100 RFF scdauoth RF S

WN25-100rjhg/6

法兰 WN40-25RF/t2R

LWN 50-150 RF5-900)f0 Sch40SFch

SO50-40MF/1.m20F 20592 scRF

BL25-40M0-P7.5 RJ10CH RFrF-4-R7.5f( scmpampamp2 sch120sF0

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