SA182 Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges,Forged Fittings, 1 M2 I3 u2 ?. T% c5 J, p8 i5 }
and Valves and Parts for High-Temperature Service 0 \/ R+ |1 `1 u. N: [6 y高温设备用锻制或轧制的合金钢管法兰、锻制管件、阀门及零件+ u6 O' c: V4 G- G