NB/T 47065.1  支座 BⅠ 3594

BI 3594

WN 20"-600 RF Sch40S S=21

lwn200-300 mf70F Sch10S b=Sch10S

BI 14399

WN 80-300 T Sch40S

LWN 25-150 RF H=2879

bl400-63 m/7000Â s=

WN50(B)-40 RF S=3.91-150

WN48B-40M50S00ch线16 RFHS-5RFS2RF

WN 80(B)-40 M)-25 RFSch4RF Sch3540=500 bothg2