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Metal and Metallurgy engineering Forum - Eng-TipsDifference Between ASTM A-36 & S-275 JR. - ASTM (testing materials) Code Issues - Eng-TipsJR , J2, J0, K2 PLEASE EXPLAIN THIS GRADATION - WELD RESISTANCE - Metal and Metallurgy e…STRUCTURAL STEEEL S275 JR,JO,J2 - Metal and Metallurgy engineering - Eng-Tips查看其他搜尋結果Common structural shapes· 狀態: 發問中作者: Gerbimies