... back by spring, easy to operate!Specification as follows:..The Fuel Nozzle Producing Procss as follows:Firstly, Aluminum Casting->Machining-> ... CNC, and Assembling them by experiance workers, testing them one by one!Secondly: Testing:Our Testing way is unique one in China, we ... check the nozzle quality, and all parts are same with fuel dispenser, and checking its sealing by machinery register, not ...