Shenzhen Chitongda Electronic Co., Ltd, established in 1998, is a professional security product manufacturer for 22 years. With the famous brand "Wolf Guard", it has been exporting in a whole world for 22 years. Our main products are smart home alarm system such as GSM alarm system, GSM+WiFi alarm system, WiFi alarm system, accessory and etc. We can also provide OEM/ODM service.

Guangdong HuanKai Microbial Sci. & Tech. Co., Ltd. is a national high-tech enterprise under the Guangdong Institute of Microbiology which is attached to Guangdong Academy of Sciences. Since established in 1993, HuanKai has adhered to the strategy of scientific and technological innovation and development, and has formed four product lines including microbiological testing reagents and consumables, digital laboratory instruments, physical and chemical rapid water detecting products, and high-efficiency environmentally friendly cleaning agents and disinfectant, both are with independent intellectual property rights. More than 2, 000 varieties of products are widely applied in mainland China, Hong Kong, Macao, Taiwan and Southeast Asia. Huankai has developed into an important R&D production base for domestic food and drug safety monitoring and control technologies and products. Is is committed to providing a comprehensive microbiological safety solution for the food and pharmaceutical industries. "Focus on microbial monitoring and control, escort for food & drug safety" is the mission of HuanKai! Relying on the Guangdong Institute of Microbiology and its own advantages, HuanKai has strong R&D capacity and good scientific research conditions integrating with international advanced results, and has established the Guangdong Food Microorganism Safety Engineering Technology R&D Center. Qingping Wu, the founder and chief scientist of the company, has been engaged in research in bio-safety monitoring and control, microbial fermentation engineering for a long time. In terms of innovation achievements, the company has won 2 national science and technology awards, 11 provincial and municipal science and technology awards, and 2 outstanding Chinese patent awards. HuanKai have applied for 142 patents and 88 of which are granted, including 60 patents for invention. In addition, more than 200 papers have been published in domestic and foreign academic journals. At the same time, Huankai actively undertakes the formulation of national standards and industry standards, and played a leading role in the formulation of the"Quality Control Standard for Culture Medium GB4789.28-2013", and participated in formulating microbial national standards for natural drinking mineral water and packaging drinking water. Huankai has industry-leading R&D and production hardware. It is located in the R&D production base of Guangzhou Science City. It has established many advanced production lines and high-standard R&D and quality control laboratories. It has attained ISO9001, FDA, GMP and other quality management systems certifications. Huankai has successively obtained National High-Tech Enterprise, Academician Workstation, Post-doctoral Innovation Practice Base, the enterprise actively undertaking national industry standards formulation, Guangdong Famous Trademark, Guangzhou Famous Trademark and other qualifications. Is also has outstanding and independent innovation capability and product technology advantages in China. Taking the lead in the industry, Huankai has made positive contributions to the development of China's food and drug safety industry and Guangdong's bio-industry! 2. Corporate Culture Corporate MissionFocus on microbial monitoring and control, escort for food & drug safety. Enterprise SpiritStruggle to progress, casting excellent quality; Positive at innovation, co-creating biology safety.

Rope Innovation Co., Ltd. is a direct manufacturer with more than 10 years of experience in the GPS tracking industry. Its headquarter locates in Shenzhen, China's most innovative city. Rope Innovation is a true innovator of high-quality GPS tracker devices and has satisfied the needs of customers from 120 countries around the world.

Granding Technology is a global Biometrics & RFID products and service provider by a top China-based team.

Excelltel Technology Co., Ltd. Was established in 1999 in Foshan, China. We are a manufacturer which is specialized in developing and producing PBX system equipment. Our factory has attained ISO9001 certification, and most of products have attained CE and CCC certifications. With high standards of production and strict monitoring system of quality, its products have been constantly exported to many countries over the world.

Shenzhen Coban Electronics Co., Ltd is a private export-oriented enterprise founded in 1999, 90% of the products are exported, and we have many years of research and development, production and management experience in automotive electronics, security products, wireless communications terminal equipment, and other fields.