Establised at the end of last century, Guangzhou Zhilitong Electromechanical Co., Ltd. is an high-tech private enterprise which integrates the R&D, manufacturing and consulting service of cable wires (accord to IEC, UL, GB, BS) test equipments, and accessories, and home appliance test equipment.

Hongtuo Instrument Co., Ltd., formerly established in 2002, was mainly engaged in OEM production of density instruments. In 2010, we established DahoMeter, the exclusive brand of density meter. In the same year, we started to incorporate HongTuo Instrument Company and setup the business division of physical testing instruments. The division is specialized in the R& D, production and sales of various physical testing instruments and environmental testing instruments.

Dongguan Xin Bao Instrument Co., Ltd with its own brand, OTS, has been dedicating in providing professional testing equipment with top quality since its establishment in 1978, It owns sophisticated and advanced technology in producing temperature and humidity chambers, climatic test chambers, environmental chambers, thermal shock test chambers, rain and dust test chambers, salt spray chambers, walk in /drive in test chambers and other customized test chambers, tensile testing machine, vibration test machine, Paper Packaging Testing Equipment, Luggage Testing Equipment, Furniture Testing Equipment, Leather and Shoes Testing Equipment, Mobile phone and PC Testing Equipment, Battery Testing Equipment, Plastic and Rubber Testing Equipment, Products made by OTS reach international standards: ISO, ASTM, DIN, EN, GB, BS, JIS, AMSI, UL, TAPPI, AATCC, IEC. They are also widely used in different area: R&D Institutions, Quality Inspection Institutions, Universities, electronics, communications, instrumentation, automobile, plastic, metal, Building materials, Aviation, etc.

DONGGUAN LONROY EQUIPMENT CO Ltd is professional in manufacturing and selling kinds of test equipments with high technology and high accuracy, located in China manufacturing centre-Dongguan. Company main products: Universal testing machine, Environment Chambers, Plastic/Rubber testing machines, Tape, adhesive, paper, printing, packaging test machines, Fabric, shoes, leather testing machines, Oil, petroleum, test machines and other test equipment and meters. Products are covered more than 50 industries and related more than 1000 machines. Widly used in: Plastic, rubber, wire, cable industry; Leather, shoes industry; Luggage, bags industry; Tape, label, paper, printing, package industry; Electricity & electronics industry; Spring hardware industry; Auto and motorcycle industry; Toys, mobile phone computer industry; Sports equipment industry; Electroplating industry; Coating industry; Building materials industry. Products mainly sold to abroad market, service for more than 50 countries customers. Familiar with international trade processes and provide complete foreign trade service to customers. Always taking "providing accurate precision delicate testing instruments to customers, improve product value for customers, to provide staff development and rising space. Professional, focused, focused on testing industry, achieve win-win-win! "as the company's mission and values.

HUNAN GONOAVA INSTRUMENT CO Ltd Professionally supply kinds of testing machines for different industries, it is a collection development, research, production and sales of high accuracy testing machines, products meet ASTM, JIS, ISO, GB, TAPPI, IEC, EN, DIN BS and other domestic and international standards. Provide customers with better overall laboratory solution, including lab design, machine customize and drawing, instrument selection, installation, training, maintenance, become one stop for testing instrument and machines.

Dongguan ZhongLi Instrument Technology Co., Ltd. Was established in 2014. Nestled in Dongguan, Guangdong province, a region renowned for its vibrant manufacturing and technological innovation, our company has thrived in this dynamic environment.

Haida established in 2004 in Dongguan City, where is the "silicon valley" of world manufacturing industry. It is a certified national high-tech enterprise engaged in design, research and development, production, sales, calibration and after-sale service of test equipment, such as paper&packaging test equipment, Furniture test equipment, material mechanics test equipment, optical measurement equipment, environmental reliability testing equipment etc. With the persistent efforts of all staff, Haida owned 4 factories with total 60, 000 square meters, 15 branch offices covers South China, North China, East China, Central China and Northwest China, as well over 20 overseas after-sales service sites covers Southeast Asia, Europe, North America and the Middle East with over 28, 000 customers.

Hunan Fullde Electric Co., Ltd. is a National High-Tech Enterprise, which founded in 2014, located in Taojiang County of Yiyang City, Hunan Province. We has own factory, R&D team, sales and after-sales department, deisgn, produceing and sell all kins of resistance products, such as load banks, neutral grouding resistors, UHV filter resistors, flexible DC starting Resistors, the rail transit Locomotive braking resistors, marine solid state circuit breaker, special power supply, wind power generation low Voltage through protection system, and others. We also provide load bank renting service.

Hongdu testing equipment Co., Ltd established in 2000, we focuses on the provision of products and services to our clients through high quality and competitive price. We supply standard or customized solutions and products for many test, measurement and quality control tasks required in the world of cable, wire, socket, plug, switch, plastic and rubber testing. All of our products are complying with the requirements of many standards, such as UL, IEC, VDE, BS, CSA and so on. R&D center established with east China university of science and technology in 2006 makes us could provide more professional products and after service.