GB/T 12459  同心异径管 DN 350×300-Ⅱ-4RCRF�В��SCHtadata S

DN 350×300-Ⅱ-4 RCRF�В��SCHtadata S

WN80(B)-25 M

WN32(B)-40 FM

SO 25B-16Rf

SO80-150RF

WN 200-300 RF Sch80S

bwn700-150 rf sRFB)F B=96 ย �75-150F H=1616RFG/T1.0/6

WN 50(B)-63 FM S=5

WN 250(B)-63 RFh100 20ii=144-00RFF S=4δ10-0R

47023-fm6