GB/T 12459  弯头 DN 50-Ⅱ-390ELampampampFF0 RF Sch80��ºâ€“ b

DN 50-Ⅱ-3 90ELampampampFF0 RF Sch80��ºâ€“ b

PL100b-25mh/56-ch200sF6Fubl

wn 450-25mSmF5 RF0

BL 1 1/2"-150 RF

SO 40-10 RFF=39C=292-200.6f s=d=580rf5 Df

PL600(B)-25G(b)-10rf/

PL 40(B)-16 RF=ii.65f1z46pampam(b)-1600-2.5/55

so50b-300RFR

A