发布时间:2025-02-03 16:52:47
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
我们这个是七层住户楼经历过洪水几乎淹到一楼然后是八级地震最近一楼住户在装修楼上地板震动
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