... parameters:length:1000-5000mmInner diameter:200-3000mmJoint:plain,socket and babbet(male and female)Advantages:easy to ... roller type concrete pipe making machine2,Mould:flat,socket,rabbetdiameter:200-2500mmLength:1000-5000mm3,Batching Hopper,we ... the pipe inner diameter3, the pipe joint, flat, socket or rabbet? 4,If your pipe need to add ... ? Carbon steel concrete pipe making mold with CE certificate