GB/T 12459  弯头 DN 50-Ⅱ-Sch10S180ELRF k516 g@Rh

DN 50-Ⅱ-Sch10S 180ELRF k516 g@Rh

PL 250(B)-16 RF

WN 600-900 RF h=S06/6b¬Jampamp RF43RF

PL 350-16RF-9540uotHG-0

PL15(B)-16 RFRF1500-s/@a

PL100(B)-16 RF b=3

SOP FF 10K 300A

PL 100(B)-25 RF

WN80b-16RF s=6S=0-1.0R

WN 2"-150 RF S=8.3850 RFF06ampam