All grades including KER 1904, 1909, 9000 of High Styrene Resin/Rubber (HSR) covering SBR 1900 series referencing to High Styrene Resin Latex Master Batch/High Styrene re-inforcement Polymer, excluding Polystyrene, Thermoplastic elastomer, Acrylonitrile-Butadiene Styrene copolymers and Styrene acrylonitrile copolymers and SBR 1500 and 1700 Series.
