The self-sealing oil gun has more compact structure, small and beautiful appearance, less pressure loss and large flow rate; Accu-rate flow control,users can precisely fuel as they need;The oil gun products are reliable,lightweight and compact, and the sealing zone adopts an integrated structure, which reduces theworking pressure and reduces the probability of oil leakage.With the horizontal nozzle automatic closing function, no pressure self-sealing function for choice,Nozzle integrated design, to avoid the nozzle loose in the long-term refueling, oil leakage;The main valve adopts two-stage seal to avoid high oil pressure and difficulty in firing;When refueling, one hand can complete the three gear control, handy.