Does the hydropower transformation of five-star hotels need to be buried? Should wires be made of stainless steel or is there no hard and fast rule?

For five-star hotels, it is best to use stainless steel. Although the cost is high, the external protection of stainless steel can resist water seepage and corrosion, which can play a good protective role and has a long service life. At present, the pipes of water, electricity and machinery in five-star hotels are basically stainless steel.