GB/T 12459  管帽 DN 580-Sch10SC y=200

DN 580-Sch10S C y=200

WN50(A)-25RF19.053RF

wn65-150 rf s=3.3 Rj

WN80(A)-100 RF A=76-16R02 b=3M1线 b=2RF&q-

WN25(B)-25 TG/85 B1=90 K=15/==5

WN 400-150 FF A=406 B=3H0 RF0

47023 FM500-1.616 RF00

wn200-300rf-sc.02-140=41 H=332RFF Sch4025 RF b=3

BL150-60