... cold and hot water pipe life can over 50 years in the stated condition.)2.High temperature resistance.(Under the ... corrosion resistance,furring resistance,increase current.The chemistry of PPR can resist chemical ionization in water,stop furring,increase by 10% compared ... poisonous,suitable for dringing piping completely)Specification:1. Complete items:pipe,coupling,tee,elbow,cross.2. Size(dia):20 ...