concrete pipe making machine to produce 300-2000mm(diameter), parallel, spigot and sockets concrete pipes. Main Technicial Specifications:type: Unik800*2000 Unik1200*2000 Unik1600*2000 Unik2000*2000Outer diameter ... -727 72-727Feature:Unik—2000 concrete pipe making machine has different types of Unik 800×2000, Unik1200×2000, Unik1600×2000, Unik2000×2000, they produce concrete pipe for diameter of 300 ...