... broken and easy to maintained etc2,Mould and concrete pipe Inner diameter:300-3000mmLength:1000-5000mmWall thickness:5mmSealing:Socket ... cage welding machine,Concrete feeder,Concrete mixer,Batching hopper,Crane etc1, Automatic steel cage welding machine2,Concrete feeder and ... informations,thanks for your cooperation:...1,the pipe length2,the pipe inner diameter3,the pipe joint,flat,socket or rabbet?as ...