... machine to produce, 300-2000mm(diameter) parallel, socke and spigot concrete pipe. Main Technicial Specifications:type: Unik800*2000 Unik1200*2000 Unik1600 ... 800×2000, Unik1200×2000, Unik1600×2000, Unik2000×2000, they produce concrete pipe for diameter of 300-2000mm and length of 2000 ... . Roller axis support pipe mould and press concrete inside the pipe mould, when pipe mould with roller ...