Sino Jewelry Co., Ltd Our pearl factory is the leader of pearl processing factory in China .We own the interna-tional high-class processing technology 、craft、and strict control system to ensure the steady quality in color 、luster、matching！The pearl processing steps are as follows:Washing-Classifying-Drilling-Bleaching-Polishing.Over twenty years、our high quality pearls have got good reputation from our customers around the world! http://www.qidanpearl.comView More