1.carbon black manufacturer from China 2.Type:N220/330/550/660 3.ISO certificate 4. ... Welcome to Qingdao Mingyu Industry Co.,Ltd carbon black manufacturer from China 1Product name:Carbon black2.Specifications:ItemsN220N330N550N660Indine absorption g/kg121±582 ... , such as tires, tires, rubber overshoes, cable, seal ring, adhesive tape, triangular belt and so on all kinds of rubber products ...