GB/T 12459  异径三通 DN 50×50×40-Ⅱ-4TRh40S6 RF S=2.87RJ R

DN 50×50×40-Ⅱ-4 TRh40S6 RF S=2.87RJ R

3 RF 800-1.0 δ0=120Sc6F Sch40A k=10380

WN100-300 RF Sch10s14CH10SFF SCH1FH=158n=/

WN 600-16 RF S=20s=10 RF=006-2

WN 80(B)-25 RF--2.5/1 C=18J500-g=t2

WN 100(B)-16 RFd=60 nrF Sch10S=f2 RF HR75sch16S

WN32(B)-16