Index Engineering Company manufactures Wheat Puff Gun Machine. Index Engineering Company also manufactures Testing Equipment, Survey Instrument, and Packaging Machine. Wheat Puff Gun Machine is snack-producing Machine, which puffs wheat, corn or rice by heat and pressure inside the closed type cooking vessel. After feeding the raw materials into the cooking vessel, the vessel starts rotating to get even cooking. When the heat goes up by LPG burner to cook the material, the pressure inside builds up. When the pressure and heat reach the optimum point of expansion, the machine actually becomes a gun, shooting the expanded products with a big sound. The puffed product is usually applied with sweet seasonings.