Hangzhou POLYTECH Plastic Machinery Co.,Ltd is a national high-tech enterprise registered in Hangzhou Hi-Tech Development Zone with more than 20 years in this plastic extrusion field. our main products as follow: 　　　　　　 1. Plastic Roofing Sheet Extrusion Line 2. Plastic Glazed Tile Extrusion Line 3. Round /Flat Dripper Inlet Irrigation Pipe Extrusion Line 4. Plastic Pipe Extrusion Line 5. WPC Products Extrusion Line 6. Plastic Profile Extrusion Line 7. Plastic Plate/S