主营产品：Production and sales of life-saving equipment, fire-fighting equipment, wholesale and retail of Wujijiaodian, fire-fighting equipment maintenance, and fire-fighting engineering construction.
主营产品：Sales and installation of general machinery (excluding special equipment); sales of railway equipment and accessories, mechanical equipment and accessories, rubber products, fire-fighting equipment, amusement equipment, lifting tools, environmental protection equipment, electronic products, and communication equipment.
主营产品：Logistics from Weihai to Linyi, Shandong, Logistics from Weihai to Fuzhou, Fujian, Logistics from Weihai to Wuhan, Hubei, Logistics from Weihai to Changsha, Hunan, Logistics from Weihai to Guangzhou
主营产品：Mining rescue equipment, self-rescuers, sensors, detectors, mining machinery and equipment coal feeders, sports car protection with one slope and three gears, air cannon
主营产品：Other maintenance and installation of security monitoring equipment, access control, attendance equipment and system integration monitoring system
主营产品：Manufacturing and sales of fiberglass series products, central air-conditioning ventilation equipment, and fans; processing and sales of automobile accessories; production, installation, and sales of new lightweight composite protective airtight doors and airtight doors; production and sales of electric car casings, as well as self-operated import and export business.
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GSH5 speed sensor
