发布时间:2025-02-03 16:52:32
焊接电流大时--焊把线就相对要粗些,焊接电流乘以0.2---0.35左右为焊接电缆平方数,(只是大概数字)要买焊机和线请找唐山嘉华机电0315-2877199
蜡笔小新主题曲歌词日语怎么唱 用汉字裱起来的 怎么说那 哎你们自己琢磨
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