ALT series color touch screen steel pipe handheld printer, steel pipe coding machine. It was assemble with a " V' type, so it is more hommization to print steel pipe, the steady, simple operation; as the printer can stored above 1000 pcs text, and can change, input text by color touch screen directly, so it is easy to print different type pipe in action when the text need change, and also the print can print dotmatrix, and bold character, so it has been popular to use for steel pipe.