GB/T 12459  等径三通 DN 15-Sch40STS=111.9 b=-1F

DN 15-Sch40S TS=111.9 b=-1F

3 M 500-1.0 δ0=8

WN200-25RJ191F51f00mpampampampampaFch

DN300-PN25 PL/W-A RF Ⅱ S=8

SO 8"-600 RF

1 RF 500-1.0 δs=6

WN 2"-300 RF Sch40S

A BL900-600 RJ=130F6B)¬s=

47022 m350-4.0RF.5-10-

wn350-150rfs=8200-cS=F �