GB/T 12459  弯头 DN 15-Sch2090ES

DN 15-Sch20 90ES

SO 2"-150 RF

3 FM 500-4/

3 M 1000-4.0

BL50-300RFFF

WN 25-300 RFS60RF bl25-15=

LWN40-150 RF B=41 H=193

WN50(B)-16RFS=930 S=5Fr05

WN 8"-150 RF Sch10S

WN 25(B)-25 M S=4F5=205Frf0 RF S=4.50 RFsF0-1.0 î´=12F00400-1.0500 RFu00c