Jinan Congrui Trade Co., Ltd.

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Shandong Zhongrui Construction Machinery Co., Ltd.

🇨🇳 China

2001

101-200 people

Manufacturer/Trading Company

Established brand

Own brand

Patented technology

High-tech enterprise

Shipments

Key customer

JORGE VERA CORDOVA

Key market

🇻🇳 Vietnam

Description

Shandong Zhongrui Construction Machinery Co., Ltd., established in 2001 and headquartered in Weifang, China, is a professional manufacturer and high-tech enterprise specializing in the research, development, and production of rock drilling machinery. The company operates a modern 20,000-square-meter facility equipped with advanced CNC machine tools, deep hole grinders, and Axelin heat treatment production lines. With a workforce of approximately 101 to 200 employees, the company is recognized as the Weifang Drilling Mechanical Engineering Technical Research Center and maintains an ISO 9001:2015 certified quality management system. The company’s extensive product portfolio is organized into five core series: high and low air pressure down-the-hole (DTH) drilling tools, top hammer (thread) drilling tools, pneumatic rock drills, large-diameter DTH tools for pile foundation rescue, and specialized drilling tools for oil, gas, and water wells. Specific products include DTH hammers and bits, cluster type hammers, eccentric and concentric drilling tools, and the YT28 air leg rock drill. These tools are engineered for high reliability and performance in soft and hard rock environments. Shandong Zhongrui serves a diverse range of industries, including mining, tunneling, geothermal energy, and national defense construction. In addition to its strong domestic presence, the company holds an independent export license and ships its "ZR" brand products to over 20 countries, including Russia, Australia, and South Korea. Through continuous collaboration with universities and research institutes, the company remains a leading innovator in the domestic rock drilling machinery industry.

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Jinan Changrui Electronic Technology Co., Ltd.

🇨🇳 China

2016

11-50 people

Trading Company

OEM manufacturer

Shipments

Key customer

SABIRS POULTRY

Description

Jinan Changrui Electronic Technology Co., Ltd., established in 2016 and based in Jinan, Shandong, China, is a specialized provider of M2M (Machine-to-Machine) devices and IoT solutions. Operating as both a manufacturer and trading company, the firm leverages a team of experienced engineers to develop, produce, and sell advanced tracking hardware and integrated software systems. Their core product portfolio focuses on GPS tracking solutions, including vehicle trackers, 4G LTE Cat-M1 devices, fuel level sensors, and fleet management systems. These products support diverse applications such as remote monitoring, asset control, and independent staff security using technologies like 2G, 3G, 4G, Bluetooth, and satellite communications. In addition to its primary tracking systems, the company offers a range of electronic components and technical services, including flat ribbon cables, auto wire harnesses, humidity and temperature sensors, and digital power meters. Jinan Changrui is highly export-oriented, with international trade accounting for over 90% of its business. The company also provides specialized services in software development, information system integration, and electronic equipment repair. With a workforce of 11 to 50 employees, the company maintains a focus on delivering reliable technical promotion and IoT services to global markets.