... be broken and easy to maintained etc2,Mould and concrete pipe Inner diameter:300-3000mmLength:1000-5000mmWall thickness:5mmSealing: ... SocketRabbet(male and female ) To produce a (reinforced)concrete pipe making machine,you also need Automatic steel cage welding ... Batching Plant4,Our project5,International cooperationIf you need our concrete pipe making machine,please tell me the following informations, ...