This production line is used to produce PP-R, PERT, PP-R reinforcement, PP-R multi-layer, silicon core tube production line. PP-R tubes are non-toxic and hygienic; The advantages include heat resistance, good insulation performance, simple and convenient pipeline welding process, and recyclability. PERT does not require cross-linking process on the basis of PEX, but it is recyclable, easy to process, and has better heat stability. Silicon core tubes are mainly used for laying cables and protective sleeves for optical cables in highway network communication engineering.