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masterbatch our scientific research personnel were in close cooperation with Beijing University of Chemical Technology to make a lot of efforts in the research on the character of the difficult dispersion of carbon black, and finally succeeded in creating a black "HB" pre-dispersion technology and developing the unique ultra-dispersed carbon black agent "HB" series. Our can be applied to PE film, moulding of PP, PE, PS, ABS, PA, PVC, PET, etc, injection and fiber production.Also we can make the special goods under customers requirements.Also we can make the special goods under customers requirements.