... produce Diameter 20-630 PPR pipes. PPR pipe extrusion line is capable to manufacture different kinds PPR cold and hot ... the market , PPR, PP, PPB , PPC , PE . we develop this line with many advantage : human-machine interface , high automatic degree , the ... crack resistance3. high mechanical strength , idea for conveying urban fuel , gas and water supply4. effective extruder : high speed , low noise , ...