单相电度表  制造商、经销商、供应商

Founded in 2011, Joy Technology Co., Ltd (Joy) provides integrated energy management solutions of "SaaS cloud platform + IoT gateway + IoT terminal" for smart water, smart heating, smart apartments, smart park and other fields, and is committed to helping people better use energy and better protect our blue planet.
Joy has professional R&D capabilities. The current product system includes: system software that supports millions of terminals online at the same time; reliable communication base stations; accurate metering and multi-category IoT terminals (smart water meters, electricity meters, heat meters) that support multiple communications. Comprehensive energy metering solutions have been applied to utilities, apartment hotels, commercial complexes, industrial buildings, schools and other fields in more than 30 countries and regions.
Joy has core independent intellectual property rights, including 3 Chinese invention patents, 1 American invention patent, 1 German patent, 24 utility model patents, and 21 software copyrights. Meanwhile, Joy has obtian MID B+D certificate, CE certificate, RoHS certificate, KEMA etc for related products.
Joy provides energy metering and IoT solutions for smart water, smart heating, smart apartments, smart park etc., while also providing high-quality, low-cost, and efficient OBM/OEM/ODM services for craft brother.

LUMEL S.A. is one of leading European manufacturers of electrical devices for automation and high pressure aluminium castings.
We have been on the market since 1953.
 The activity of LUMEL S.A. is focused on 4 main branches:
1) production of automatic devices for measurement, converting, regulation, registration and visualisation of industrial process
2) production and machining of high pressure die castings and manufacturing moulds and tools
3) design and manufacturing of automation systems
4) SMT assembly and precision engineering.
We provide comprehensive solutions for various branches of industry: power industry, chemical industry, metallurgy, food industry, light industry, automotive industry, white industry and mining.