The copper square tube is hard in texture, not easy to corrode, and resistant to high temperature and high pressure, and can be used in a variety of environments. The copper square tube combines the advantages of metal and non-metallic pipes, and it is the only connection pipe in the copper pipes of the cold and hot water system. The copper square tube is fire-resistant and heat-resistant, and can still maintain its shape and strength at high temperatures, and there will be no aging phenomenon. Copper pipes have many advantages in one: it is strong and has the high strength of ordinary metals; at the same time, it is easier to bend, twist, crack, and break than ordinary metals, and has a certain resistance to frost heave and impact. Once installed, the copper water pipes in the water supply system do not even need maintenance and maintenance.