... : 1, the family Application: For daily use items such as gold and silver jewelry, jewelry, headgear, brooches, glasses, bracelets, fountain ... pens, CDs, shaving knives, combs, toothbrushes, dentures, tea, etc. There are baby bottle , teats and fruits such as ... industry: In the grinding polishing process, a large number of dust dirt will be subject to a buildup in the jade ...