GB/T 12459  异径三通 DN 500×500×40-Sch80STR

DN 40×40×500-Sch80S TR

BL 1/2"-1500 RJ

BI 1200

WN 20(B)-40 RF S=12

WN80(B)-16 RF

WN300-600 RF B=300 S

PL25(a)-2.5 RFRF/3.BB=24F=

PL 150(B)-25 RF

WN 10"-150 RF S=6.35

WN 250(B)-25 RF100h10F0d=1.6/B)-1RF(b)-63rfh-ch0910FMB)F=5151RFFRF S2mp