... ,etcOptical& watch makeroptical lens, eyeglass, sunglass, metal, gold, jewelry, diamond, watch band, watch cover, watch hand,etctextilespinneret plate, ... applied:daily use items such as gold and silver jewelry,jewelry,hair,accessories,brooch,glasses,watch,chain,pen,CD,scraping,knives, ... the world the truth filling completely.3.Jade,jewelry processing industry:the grinding and polishing process,a lot ...