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DC01 DC03 Q235 Cold Rolled Steel Coil Oil Coating Black Annealed Steel STANDARDS: Q/TB303,EN 10130:DC04,DC03; Q/TB302,JIS G3141 :SPCC,SPCD EN 10130:DC04; JIS G3141 :SPCE; Q/TB303-2008:DC01( O3), DC03( ...