[請益] 層板鑽孔選擇
安裝層板時,在牆上打洞原本一開始很順利
但是鑽到一定長度後,變的非常難鑽進去
粉末從原本的水泥色變成磚紅色(應該是鑽到磚牆了)
我是使用泥水鑽頭阿,怎麼會這樣呢??
請有經驗的大大幫忙一下
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