... our patented design prepared for export.Technical parameters:length:1000-5000mmInner diameter:200-3000mmJoint:plain,socket and babbet(male ... 40% power 1,Suspension roller type concrete pipe making machine2,Mould:flat,socket,rabbetdiameter:200-2500mmLength:1000-5000mm3,Batching ... , thanks for your cooperation.1, the pipe length2, the pipe inner diameter3, the pipe joint, flat, socket or rabbet ...