The halides of MnCl _ 2, CdCl _ 2 , ZnF _ 2 and NaF reduce weld penetration as well as width.

  • 卤化物MnCl_2, CdCl_ 2,ZnF_2, NaF都 使熔深减小的同时也减小熔宽.

  • 互联网摘选 2025-01-19 08:33:39

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