Ningbo Changhong Polymer Scientific and Technical Inc.

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Styrene Butadiene Styrene SBS Modifier Elastomer Pellets	SBS Bitumen Roll Waterproofing Materials Powder	Changhong SBS Waterproof Bitumen Rolls Raw Material	Styrene Butadiene Copolymer SBS Polymer Modified Asphalt Thermoplastic Elastomer Granules
Styrene Butadiene Styrene Copolymer Asphalt Modifier Material Pellet