GB/T 12459  弯头 DN 700-Sch80S90ES5L

DN 700-Sch80S 90ES5L

WN 4"-600 RJ Sch

BL 80-40 RF5-R@W110Mu2A S=3.58data/src/3.550-R@000FF ScF rf RF

WN150-25RFFMSc-15RF300h12929RJ40RF400-600hg/t29

so80b-16rf f1

bl10-16m1500RJ´1=10

BL 6"-1500 RF

pl40-16 mf39 S

3 CM 500-4.0 О

DN80-PN16