GB/T 12459  弯头 DN 150-Ⅱ-490ES

DN 150-Ⅱ-4 90ES

WN 16"-300 RF Sch40S

pl65-16RJnRJ@B0ï؟½RF

DN900-PN10 PL RF Ⅱ

SO40-600RJ)-25

WN150(B)-25RF

PJ/SE 65(B)-10 RF

wn450(b)-25m

WN 126-63 RFF&@RJРR=1.60-@

WN125(B)-16 RFF Sch40S22u00c-16 rf RF Sch140对0-150 RF RF S=1200 RF Sch8