Hangzhou Riwa Chemicals Co.,Ltd

Hangzhou riwa chemicals co.,ltd is one of top-ranking pigment manufacturers in China which mainly manufacture Organic pigment,Inorganic pigment Azo,Lake,Toner pigment and dyestuff,more than 100 items.Our products are widely used in ink,paint,coating,plastic,rubber,pigment printing and stationery etc. [详细介绍]