DTU 60.5 - Building works - Coper piping - Supply of hot and cold domestic water, drainage of waste water, rainwater, air conditioning installations - Technical specifications.是什么意思_DTU 60.5 - Building works - Coper piping - Supply of hot and cold domestic water, drainage of waste water, rainwater, air conditioning installations - Technical specifications.在线翻译_英语_读音_用法_例句