HG/T 20592  法兰 WN 400(B)-25 G S=3.513FM6340

WN 400(B)-25 G S=3.513FM6340

A 4700/5Ів= RF0 RF0hSRf122

WN 500-300 RF Sch40S

so20(b)-150RF S=4B)-25RF S95-1

pl15b-6RF 1-10rfch5140-00 m=3.

47023 CFM1500-48

WN20A-63RFWN15900-0FMS=1

so300b)-16rf25(B)-1

SO 450(B)-10 RF S Squ0S/1501000-RF RF5-63-

WN50