... is up to 90°C and high pressure resistance is over 5MPa)3) Hot welding connection adopted, making pipes and fittings ... is up to 90°C and high pressure resistance is over 5MPa)3) Hot welding connection adopted, making pipes and fittings ... chemical corrosion resistance10) Easy and fast installation, making cost minimized11) Over 50 years of service life under normal condition12) Working temperature: 0 ...