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black pickling

英 美
  • 粗酸洗,初酸洗

双语例句

    1. A high efficient and low cost inhibitor for HCl acid pickling of steel has been prepared by using unsaturated rough alcohol and organic amine.
      利用粗品不饱和醇和有机胺的协同作用,制得缓蚀效率高而成本低的盐酸酸洗缓蚀抑雾剂。

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