主营：Vacuum plating equipment, vacuum pumps, development of vacuum plating equipment and accessories, manufacture, processing, wholesale distribution of vacuum plating materials, retail trade, import and export of self-employed and proxy goods and technologies
主营：Sales, maintenance, installation, air compressors, dryers, air storage tanks, nitrogen generators, vacuum pumps, water pump equipment, sales, general mechanical equipment and its accessories, lubricants, electronic products, mechanical and electrical equi
主营：Sales, research and development, vacuum pumps, fans, dryers, air compressors, plastic products, hardware products, instruments and meters, hardware tools, pneumatic components, sales, lubricants, general machinery and equipment, import and export of goods
主营：Engaged in energy-saving technology, research and development of air compressors, dryers, gas post-treatment equipment, technology development, technical consulting, technical services, technology transfer, piston compressors, screw compressors, variable
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