Dongyang Special Concrete Co., Ltd. is a company specializing in special concrete products that innovate the safety and durability of urban infrastructure since its establishment in 1999. Through continuous technological development and ongoing patent applications, we produce eco-friendly and easy-to-install concrete manhole blocks.

"Dongyang Special Concrete Co., Ltd. was established on August 4, 1999, and, led by CEO Lee Myung-kwon, operates in the manufacturing of concrete pipes and other structural concrete products. The company primarily produces safety manhole systems and subsidence prevention manholes, which play a crucial role in urban disaster prevention, and boasts technology based on patents."

Business Areas

• Manufacturing of Special Concrete Products: We specialize in manufacturing special concrete products that enhance the safety and durability of urban infrastructure. We primarily supply products necessary for urban infrastructure, such as manhole systems.
• Manhole System Development and Production: We develop and produce various functional manholes, including safety manhole systems that prevent backflow and cover detachment during heavy rainfall, and subsidence prevention manholes that respond to ground subsidence. We also offer intelligent manhole systems integrated with IoT sensors.
• Manufacturing of Manhole Auxiliary Materials: We also manufacture and supply various auxiliary materials necessary for manhole installation and maintenance, such as cast iron cover height adjustment blocks and safety ladders. We provide products that enhance construction efficiency and maintenance effectiveness.

Products

• Safety Manhole System: This is a special manhole system that effectively prevents backflow and detachment of manhole covers during heavy rainfall, contributing to urban disaster prevention. It focuses on enhancing the safety of urban infrastructure.
• Angle-Adjustable Manhole with Flow Velocity Maintaining Structure: This manhole is manufactured by inserting an angle-adjustable assembly made of elastic material into the pipe connection. It allows for 360-degree angle adjustment (up, down, left, right), maintains the flow velocity of sewage, and prevents the accumulation of pollutants and the generation of odors.
• Cast Iron Cover Height Adjustment Block: This is an auxiliary material that allows for fine adjustment of the upward height of manhole cast iron covers and enables watertight construction. It shortens construction time, facilitates repairs, and, due to its excellent watertightness, contributes to reducing maintenance costs.

Special Notes

• Innovative Technology and Patent Holdings: Through continuous technological development and ongoing patent applications, we provide special concrete products that innovate the safety and durability of urban infrastructure. In particular, we hold patents related to angle-adjustable manholes with flow velocity maintaining structures.
• Eco-friendly and Easy to Install: The concrete manhole blocks we produce are eco-friendly and easy to install, increasing on-site work efficiency. They ensure watertightness between manholes and connecting pipes, preventing leaks and reducing maintenance costs.
• Diverse Range of Functional Manhole Products: We offer a diverse range of functional manhole products necessary for urban disaster prevention and efficient management, including safety manhole systems, subsidence prevention manholes, and intelligent manhole systems.

Recruitment Information

• Main Hiring Positions: We primarily recruit for construction engineer (entry-level) positions.
• Benefits: We provide the four major insurances: National Pension, Health Insurance, Employment Insurance, and Industrial Accident Compensation Insurance.

💡 A Word from JobPloy
Dongyang Special Concrete Co., Ltd. is a company that produces essential products for urban infrastructure construction, such as concrete manholes. Employees may primarily perform tasks related to concrete product manufacturing and related work at production sites, and there may also be roles linked to construction sites. Adherence to safety rules and teamwork are important, and there are opportunities to develop expertise through skill acquisition.