... hose in a plate to pretest the hose, and save space, keep the rool cleaning, and the length: 5 m, 10m, 15m,, it ... , Aluminum Casting->Machining->Assembling.All parts are machining by CNC, and Assembling them by experiance workers, testing them one by one ... , we designed it according to different pressure and situation to check the nozzle quality, and all parts are same with fuel dispenser ...