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冷轧汽车结构件钢 B300LA ≤0.10 ≤0.60 ≤0.025 ≤0.030 ˉ ≥0.020 ≤0.09 300～400 ≥400 26
B340LA ≤0.12 ≤1.00 ≤0.030 ≤0.030 ˉ ≥0.020 ≤0.09 340～460 ≥440 24
B410LA ≤0.20 ≤2.00 ≤0.030 ≤0.030 ˉ ≥0.020 ≤0.09 410～560 ≥590 17
B500LA ≤0.12 ≤1.70 ≤0.025 ≤0.030 ˉ ≥0.020 ≤0.09 500～640 ≥630 15
上海皖钧实业有限公司供应以上材料
