We worldspread Intl., Ltd manufacture and export carbon black and zinc oxide with many types in Hiagh quality and best price. For carbon black we mainly produce N219, N220, N234, N326, N330, N339, N550, N660 etc.and we also produce many types zinc oxide widely used in rubber, cosmetics, coating, colorant, electron and food industries, such as 99.7%, 99.5%***** , so if you are interested in our products, please do contact with me, We will offer you best service.