GB/T 12459  偏心异径管 DN 50×40-6RE120.5-R@W110M=105 A=F sF Sch8

DN 50×40-6 RE120.5-R@W110M=105 A=F sF Sch8

WN 20(B)-63 RF RRFFM800-40/F6 RF-1

PL25(B)-40MF-16RF3fm16rfampquo

1 FM 700-1.0 Ш·�

WN 300(B)-16 RF S=0

47023 FM1000-2.5/160-26000-1.0 H=1150-1f s=14.5050-

SO 25(B)-16 RF B=49 RF

PL 80(B)-100 RF65j-2808