[ quality standard] : QB/ T2413-1998 Item standard Cr2O3 25Â ¡ Ã € 1% Basicity 33Â ¡ Ã € 2% Water insoluble matter 0.5% max PH 2.5-4.0 Cr6+ 3ppm Packaging: In moisture-proof paper-plastic composite bags, net....
We Gansu Qiyuan Chromate-Chemical Production Co., Limited Import & Export Business Head Office located in Gaolan County Lanzhou Gansu China which established in 2001with over ten years experience in....