Hangzhou GreatStar Sheffield Tools Co., Ltd. is an industrial-grade tool solution provider. It is one of the important members of the core business hardware tools section of Hangzhou GreatStar Industrial Co., Ltd. (stock code: 002444). Products mainly divides into four series : hardware tools series, intelligent and environmentally-friendly series, industrial storage series, appliances for labour protection, totally 20 categories nearly 4000 kinds of products, including mechanics tools, electronic and electrical tools, VDE insulation tools, auto maintenance and repair tools, etc., which are widely used in energy, machinery manufacturing, rail transit, new energy vehicles, auto parts maintenance, electric-power industry and other industries. Sheffield has multiple production bases, 21 manufacturing plants, more than 20,000 product resources, more than 600 technical R&D engineers, and has obtained ISO9001, ISO14001, occupational health and safety management, and Intellectual property management system certification. Product quality meets or exceeds ANSI standards, DIN standards and Chinese national standards, and has a national tool industry CNAS certified laboratory. Sheffield is committed to building a professional brand. As a pioneer of industrial-grade tools in China, Sheffield promotes the school-enterprise cooperation, successively participated in the 44th and 45th World Skills Competition National Trials, the 2016-2019 China Automotive Diagnosticians Competition, and the 2015-2018 National vocational school car application and maintenance technology competition, 2017 China International Skills Competition, 2018 New Energy Vehicle Service Skills Invitational Competition and other events. Sheffield won the 2010 China Top Ten Innovative Hardware Brands, 2010 China Top Ten New Hardware Brands, 2011 Top Ten Famous Brands in the Automobile Repair and Maintenance Industry, 2017 the best national equipment invention award by National Federation of Trade Unions, 2019 Top 10 China's auto maintenance equipment industry.