NB/T 47021  法兰 M 600-0.6/8S=1640SR0F S0bR5 RJj@5c2@RF@443RFh40

47021 M600-0.68S=1640SR0F S0bR5 RJj@5c2@RF@443RFh40

PL 50(B)-16 RF

EHA2500x93.748

SO 100-300 RF

WN 4"-150 RF Sch7182

WN 3"-150 RF Sch10S s

法兰 WN 150-150 RF S=7.1 RF-0

WN10-63rf8Sh80s

WN 4"-150 RF Sch5100

47023 RF800-1.6 H=1 B=100