If you cannot test geothermal heating principle to the construction, and the ground is absolutely not allowed to drillhammer and hammer nails, to prevent the destruction of the heating coil.
如果无法进行地热加温试验原则上不给施工，而且地上绝对不允许电锤打眼和锤钉，防止破坏加热盘管。
2
You only need basic carpentry skills for framing and one special tool-a hammerdrill for concrete fasteners.
你只需要一些基本的木工技能和一把特别的工具：打水泥紧固件的钻机。
3
Here is the detailed instruction: All you need is a hammer, drill, tubes and a bottle for SAP.