25kgs/bag(colored valve bag/craft paper compound bag/plastic ... approx / cm30.4-0.83.Application: 1)Used for coloring of construction, paints, plastic rubber, printing ink, ... including oil paint, antisepsis, spray, mosaic bricks, for concrete production, bricks used in pavement, colorful tiles,ect ... samples will send to you.5.We are a professional manufacturer of China exporting iron oxide for 20 years . ...