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The manufacturing method comprises the steps of using a pressing machine to press the material into the shell body;
制造上述灯头采用的方法为:首先使用压机将原材料冲压制成壳体;
youdao
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The manufacturing method comprises the steps of using a pressing machine to press the material into the shell body;
制造上述灯头采用的方法为:首先使用压机将原材料冲压制成壳体;
youdao