比重(g/cm3) 钢种 7.93 201,202,301,302,304,304L, 305, 321 7.98 309S, 310S, 316, 316L, 347 7.75 405, 410, 420 7.70 409, 430, 434 7.85 碳钢 不锈钢管计算 ...
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