... diameter 300-2000mm of concrete and reinforced concrete pipe, pipe interface is divided into level I, level I, for jack. ... doser(if necessary), concrete mixer, concrete feeder, pipe making machine, pipe moulds, eot crane,boiler system(if necessary), ... welding machine),etc.pipe diameter------1000-3000mm;pipe length-------1000-5000mm.pipe joints------flat, rabbet,socket.Pipe making machine type: ...