... , real easy to be carried and used. 2. High stability 3. Long-term stable light source ... Main Application: 1.All kinds of coating and finishing surface,such as paint,warnishes, ... 2.Decorative materials.Such as : marble, granite, ceramic and polishing tile and so on. 3.The other kinds of ... paper,etc gloss meter for testing the gloss of marble, granite, ceramic and polishing tile