GB/T 29465  法兰 FF 19000-1.5

HP-5 ff19000-1.5

wn 500-300rf /u00c3/u00a3/u0

PL20(a)-10FF-150 RJ Sch40S RF S=477.5 RJch8050RF400�77.5 RJRFsRSC0

pl20(B)-16 RFC650RF400p

a bl1000-300 rf/t

PL600A-25RF09 wn50-150

PL40(B)-16 FM=4

WN300(B)-25M14,F80/@-16rf

WN150-16 M060c3/data0F S4

WN