... surface gloss on Car, Electronic appliance and Musical instrument industry.2. Measurement of floor board, marble, granite ... , real easy to be carried and used.2. One 1.5 mignon alkaline Battery can be ... surface gloss on Car, Electronic appliance and Musical instrument industry.2. Measurement of floor board, marble, granite ... , real easy to be carried and used.2. One 1.5 mignon alkaline Battery can be ...