... Model: superior product name: zinc carbonate origin / Manufacturer: Hunan, Hebei Level of use: industrial-grade Specifications1.Basic ... widely applied to rubber products, soles, rubber-plastic product accessories, pipe fittings, rubber plates, motorbike tires, ... eachTechnical Index of 4th Product: HG/T2523-93 ItemItem ModelFirst-grade ProductFirst-grade ProductQualified ProductMain content (based ...