Dingjian (Shenzhen) Communication Technology Co., Ltd. (brand: TOP STURDY was founded in November 2018 and is headquartered in Shenzhen. It is a high-tech enterprise specializing in product development and services in the field of Beidou communications and three-proof communication terminals.

Dingjian focuses on the R&D, production and sales of three-proof communication products such as single Beidou active terminals, single Beidou short message terminals, RTK high-precision positioning terminals, single Beidou explosion-proof intelligent intercom terminals, explosion-proof mobile phones, explosion-proof tablets, anti-secret mobile phones, single Beidou explosion-proof law enforcement recorders, Tiantong satellite phones and other integrated professional manufacturers. It supports customized Hongmeng systems, secondary development, and provides one-stop communication equipment application solutions.

Its application fields cover air transportation, rail transportation, military and police, energy and power, surveying and mapping industry, petrochemical industry, coal and mining, smart medical care, smart city, smart safety supervision, smart production, smart manufacturing, forestry and fishery, integrated communications, emergency rescue and other fields. 

The company takes customer needs as its essence, adheres to the customer-oriented business philosophy, and follows the quality concept of quality first. The company has a strong team of technical experts and designers who have rich experience in three-proof design and innovative thinking. Through continuous research and development and innovation, we design and manufacture high-quality, high-performance Beidou handheld terminals and three-defense handheld terminals to meet users' needs for mobile phones in the Beidou communications and three-defense industries. During the product manufacturing process, we strictly follow international standards and quality control systems to ensure that each product has stable performance and high-quality manufacturing technology.

In the future, we will continue to work hard to innovate and launch more creative and forward-looking products to bring more convenience and fun to users. We look forward to working with you to create a better future!