主营：General projects, research and development of new material technology, sales of engineering plastics and synthetic resins, sales of synthetic materials, sales of new catalytic materials and additives, sales of plastic products, sales of rubber products, s
主营：General projects, sales of plastic products, sales of engineering plastics and synthetic resins, sales of glass fiber reinforced plastic products, sales of rubber products, sales of chemical products, sales of synthetic materials
主营：Sales, plastic raw materials, plastic pigments, plastic additives, plastic products, other chemical products, import and export of goods, import and export of technology
主营：Sales, plastic raw materials, plastic accessories, plastic products, plastic molds, plastic machinery, hardware products and accessories, electronic products and accessories, import and export of goods or technology (projects that require approval by law
主营：General projects, research and development of new material technology, sales of engineering plastics and synthetic resins, sales of plastic products, sales of rubber products, sales of chemical products, sales of high-performance fibers and composite mate
主营：Sales, plastic raw materials, plastic products, silicone products, plastic accessories, electronic products, hardware products, import and export of goods or technology (projects that require approval by law can only be carried out after approval by relev
主营：Licensed projects, import and export of goods, import and export of technology, general projects, sales of plastic products, sales of rubber products, sales of chemical products, sales of synthetic materials, wholesale of hardware products, sales of mecha
主营：Licensed projects, import and export of goods, general import and export of technology, sales of engineering plastics and synthetic resins, technical services, technology development, technical consulting, technical exchanges, technology transfer, technol
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