GB/T 12459  异径三通 DN 800×800×80-Sch10STRrFM1/

DN 80×80×800-Sch10S TRrFM1/

WN400-150Rf16014¥RF.6/40S==400C1

WN500B-16Ms� 500-F

wn150-150 rf asme16.

pl450b-6 rf/ d=515 d=4

pl200-10 rf f1╨á╤

wn150-150rfs=5H80S219 N=10

47023 RF1800-0.6/70 1

pl450b-6RF/

SOH RF 20K C 65A0δ5/u0 H=12pnbs61