... length: 5 m, 10m, 15m,, it is returned back by spring, easy to operate!Specification as follows:..The Fuel Nozzle ... Machining->Assembling.All parts are machining by CNC, and Assembling them by experiance workers, testing them one by one!Secondly: Testing:Our Testing way ... same with fuel dispenser, and checking its sealing by machinery register, not affacting by static, easy to find the nozzle problem! ...