This course contains a theoretical study of garment industry machines which includes various sewing machines (home sewing machines, heavy-duty home machines, industrial sewing machines, serger & overlock machines, specialized machines), machine accessories, how to use the machine, adjusting tension, various stitches, various layers, machine maintenance and repair. Theory about K3 which includes definitions, objectives, principles, scope of K3 in the garment industry. Applying various machines and accessories in making projects including making wrinkles, attaching elastic, attaching tires, folding and sewing necklines, belt holes, jeans hems, side pocket decorations and so on.