Can heating water pipes be made of ordinary plastic pipes?
No, the heating pipes must be high temperature resistant and corrosion resistant. Because you want to shop in the ground, if it is an ordinary tube, if broken, you are not good maintenance?.
General is generally PERT, the price comparison, the best is PEXC, the price is more expensive, but can produce C tube manufacturers are relatively strong. Anyway, all of them should be loaded with muddy water and ordinary ones, but they should be made by Dachang