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348H 348H是奥氏体不锈钢 PRODUCT PARAMETERS 产品参数 化学成分 成分 C Si Mn P S Ni Cr Co Nb Ta 最小值 0.04 - - - - 9 17 - 0.32 - 最大值 0.1 0.75 2 0.045 0.03 13 19 0.2 1 0.1