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简介：734N17957XHDX202l不锈钢复合管 化学成分：　%C ≤0.15 Mn~7.5-10 ， P≤0.06 S ≤0.03 Ni ~ 4.0-6.0 Cr~ 17.0-19.0l不锈钢复合管分类：　环保不锈钢无缝管，工业管，精密管，
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