concrete pipe making machine to produce, 300-2000mm(diameter) parallel, socke and spigot concrete ... -800 72-727 72-727Feature:Unik—2000 concrete pipe making machine has different types of Unik 800×2000, Unik1200×2000, Unik1600×2000, Unik2000 ... with roller axis rotates in high speed, the concrete becomes solid pipe by action of roller press and fugal force. concrete pipe making machine