主营产品：Petroleum, chemical industry, textile, electric power, urban heating, water supply, boiler water supply, natural gas, steel, papermaking, printing and dyeing, pharmaceuticals, medical industry, light industry
主营产品：Hydraulic components; hydraulic complete systems; mechanical equipment manufacturing, sales and technical services; mechanical equipment leasing and maintenance; import and export of goods and technology
主营产品：Technology development, technology transfer, technical consulting, and technical services in the field of biotechnology; biological reagents, medical equipment, and laboratory instruments, and engaged in the import and export business of the above commodities and technologies.
主营产品：Production and sales of power tools, metal tools, hydraulic tools, power pipes, power rope nets, railway machinery, lifting tools, various mining equipment, and sales of imported tools
主营产品：Pneumatic and hydraulic accessories, industrial control components, instruments and meters, mechanical and electronic accessories, switching appliances, hardware tools, valves, electrical lighting equipment, wires and cables
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