合金细晶粒钢管|沙特标准|EN 10216-3
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合金细晶粒钢管|沙特标准|EN 10216-3
Seamless Steel Tubes For Pressure Purposes-Technical Delivery Conditions-Part3:Alloy Fine Grain Steel Tubes
压力用无缝钢管交货技术条件第3部分:合金细晶粒钢管
Technical Regulation for Pressure Equipment
Seamless Steel Tubes For Pressure Purposes-Technical Delivery Conditions-Part3:Alloy Fine Grain Steel Tubes
压力用无缝钢管交货技术条件第3部分:合金细晶粒钢管
Technical Regulation for Pressure Equipment
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