Plastic pigments, ink pigments, organic pigments, paint pigments manufacturer. Riwa Cooperation is a large pigment manufacturer, hangzhou riwa chemicals co.,ltd. hangzhou riwa industry co.,ltd. and hangzhou riwa chemical co.,ltd.
belong to riwa cooperation, riwa manufacture and sell specially pigment red, yellow, orange, violet, blue, green and all kinds of pigment and chemical intermediates, our brand have riwa, rwcolor & hangcolor, all of these products are widely used in ink, paint, coating,...
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