GB/T 29465  法兰 M 1700-0.25/202 l=30 c=RF B=5

5 M 1700-0.25202 l=30 c=RF B=5

WN 80(B)-40 RF S=5800quu00 RF Sc

BL450-10RF Dh4007S=14

20615BL150-300 RF/pampampampampq

WN250(B)-25 FM S=5/-2010rL

pl20-16ff a1=710(B10rf/52-1GB 911

PL400(B)-25 RF16 rfØa117525BS=≥2

WN 500(B)-40 RF S=22715-

SO125-150