GB/T 12459  翻边短节 DN 1500-Sch140LJS40','/@SO100-150 0(b)L

DN 1500-Sch140 LJS40','/@SO100-150 0(b)L

SW25-300 RF B1=B

3 B5S0S-1680s000 RF S

wn100a-25tF=3.615 WN400-600RJ&10M20δ0=180�Â

WN500-16fmrrfa/f sch40s-1

SO200-16RF0F157 �ch4 ã6R

wn40-10rfq¿MI@WN100(B)-16 R

PL350-16RF-F00sc00 Sch=6

WN200(B)-