Carbon black can be used in tire and rubber products reinforcement, It is pure black powder or ganular, and has high reinforcement capacity for rubber products and tire manufacture, and could increase rubber service life. â?¢ Analysis methods: according to GB3778-2021 Product Standards. We can all is tailor the specification to meet customer choice. packing: 1000kg(1MT) bag, 500kg bag, and 20kg bag depends on the specific requirement of customers.