... making machine adopted the new structure of two points, with the peculiarity of compact structure, good stability, convenient operation ... we have PLD800/1200/1600/2400/3000/4000 etc 4,JS500 Concrete mixer,we also produce JS750,JS1000, ... diameter3, the pipe joint, flat, socket or rabbet? 4,If your pipe need to add the steel cage? ... other requests? Carbon steel concrete pipe making mold with CE certificate