... Pipe Production Line Extruder adopt mixing special screw for PP-R, with the high speed, high plasticization and high output. Equipped ... different type moulds, producing single, double, three layers PP-R pipes, PP-R fiber glass pipe. The production line has advantages of ... ’t notify.http://www.extruding-machinery.com/product/178-pp-r-pe-rt-pipe-production-line-sj-7499/ PP ...