GB/T 12459  偏心异径管 DN 100×80-Ⅱ-4.5RE

PL350-10RF71RFd RFS�RF Sch40SF Sch10S-40 RF=150

DN 100×80-Ⅱ-4.5 RE

WN 300(B)-25 RF S＝100-1.6 / 的含

B WN32"-900 RF S=36c/rf-fF2255-1

HP-1

SO 150-900 RFG00-180 S

SOP RF 10K 100A

WN 50-150 RF)16 A=60.5 S=/2l RF S=89rfHG

WN200(B)-25 M-1p/