... ) To produce a (reinforced)concrete pipe making machine,you also need Automatic steel cage welding machine,Concrete feeder,Concrete ... mixer,Batching hopper,Crane etc1, Automatic steel cage welding machine2,Concrete feeder and Crane3,Concrete mixer ... pipe length2,the pipe inner diameter3,the pipe joint,flat,socket or rabbet?as my pictures4,Whether you need to add the reinforcement steel ...