... produce Diameter 20-630 PPR pipes. PPR pipe extrusion line is capable to manufacture different kinds PPR cold and hot ... market , PPR, PP, PPB , PPC , PE . we develop this line with many advantage : human-machine interface , high automatic degree , the ... as below :1. diameter: 12-630mm2. high heat resistance , aging resistance , environmental stresss and crack resistance3. high mechanical strength , idea ...