GKGK6-38 high-speed automatic injection bag-making machine is a kind of single and double (amphibious) chain line mark sewing machines. This machine adopts Japanese sewing machine's theory, the selection principle of fuel spray type automatic injection system, make full lubrication, solve between all the disadvantages of artificial refueling. Not only solved the lubrication system greatly, but also greatly reduces the mechanical noise. Is the present domestic and internationally most advanced bag-making machine.