HG/T 20592  法兰盖 BL 400-10 RFCHFa/u5F@41RF@RFpquompa09.2 b=.5b1

BL 400-10 RFCHFa/u5F@41RF@RFpquompa09.2 b=.5b1

WN 3"-150 RF Sch10S

DN900-PN16 BL RF Ⅱ

WN 100-600 RJ Sch120vplorn8

PL 100(B)-16 RF

SO 3"-150 RF

SO 250(B)-25 T

1 RF 1000-0.6

AWN 30"-300 RF Sch40S2.5/35

SO 200-25 RF5 RJScF&@пҝ18c RF-R