... pe100 raw materials PE-RT underground heating pipes 1.suitable for such ... , public bathroom, etc 2.ISO9001,CEPE-RT underground heating pipes1. Ground heating system, it is ... machine to prepare: According to installing the pipe specification, assemble heat melting device well, put ... pipe whirlingly on the pipe fittings, connect the place and forming the even flange, keep 2-5s, natural cooling. underground ...