... craft and machinery. Our production lines, such as aluminum (steel) plastic composite pipe unit, PVC foamed pipe unit, ... equipments in war industry have been put into production, which been approved by authority in China.main ... parameterProduced pipe specificationΦ20-Φ63mmProduction line speed0.5-10m/minpower52kwTotal length of production lineAbout 20m PVC two pipes extrusion production line