NB/T 47065.1  支座 BⅠ 6997

bi 6997

wn80-16m)-25 rf1 S=12150RFF02 ScRF.6RF-

PJ/SE 40(B)-25 RF S=5

WN 1/2"-2500 ST

PL 25(B)-10 FF

BI 3804B10135ƒÆ’6000F000 RF Sch12)-1RFhpF S=5.5=mp50rf.60

WN 2 1/2"-150 FF Sch80S

B WN 700-150 RF S=S=10-300rf@.5 R300 RJ Sch8

WN 4&quo