Jeongwon Cast Iron Co., Ltd. is a specialized cast iron manufacturing company established in 1999, focusing on the production of cast iron manhole covers and various cast iron products, which are core components of water and sewage infrastructure. Based on numerous technical patents, the company develops high-performance manhole covers, leading the market.

"Jeongwon Cast Iron Co., Ltd. is a specialized manufacturing company that has focused on producing cast iron manhole covers and various cast iron products, which are core components of water and sewage infrastructure, since its establishment in 1999. Based on numerous technical patents, the company leads the market by developing high-performance manhole covers with innovative features such as boltless locking, height adjustment, and noise prevention. Furthermore, the company is concentrating its efforts on developing pipe joint components like saddle devices that prevent water leakage in water pipes and enhance construction convenience, contributing to the establishment of safe and efficient urban infrastructure through continuous research and development and quality management."

Business Areas

• Manufacturing and Sales of High-Performance Cast Iron Manhole Covers: We primarily produce cast iron manhole covers with various functions that maximize safety and convenience in road and sidewalk environments. By applying patented technologies such as boltless locking, height adjustment, noise and corrosion prevention, and waterproofing, we solve the problems of existing products and provide customized solutions to local governments, construction companies, and public institutions.
• Development of Pipe Joint Components: We are also focusing our capabilities on developing pipe joint components, such as saddle devices, that prevent water leakage in water pipes and enhance construction convenience.

Products

• Patent-Based High-Performance Manhole Covers: This is a next-generation manhole cover that ensures the safety of vehicle traffic and pedestrians, improves urban aesthetics, and enhances maintenance convenience. By applying features such as a boltless locking device, height adjustment device, and double-sloped structure, it prevents the cover from detaching due to external impact and minimizes noise.
• MULTI Functional Manhole: A multi-functional manhole product that goes beyond the functions of a general manhole and can be applied in various environments.
• Double-Cover Manhole: A manhole product designed with a double structure to enhance stability and durability.

Special Notes

• Innovative Technology and Patent Holdings: Based on numerous technical patents such as boltless locking, height adjustment, and noise prevention, we develop high-performance manhole covers, leading the market.
• Proprietary Casting Technology: Using the 'Vacuum Lost Foam Casting Method,' adopted by only about 2% of domestic casting factories, the casting surface is beautiful, mass production is easy, and precise shape casting is possible.
• Thorough Quality Control and Research & Development: All processes, from design to sample production, mold manufacturing, product production, and processing, are handled by our own system, and we are expanding our technology portfolio through continuous R&D investment and quality management.

💡 A Word from JobPloy
Jeongwon Cast Iron Co., Ltd. is a specialized manufacturer of cast iron products, including water and sewage manholes. There may be many casting and processing-related jobs here, and the importance of quality control is high. If you strictly adhere to safety regulations and actively acquire new skills, you will be able to adapt well and grow within the company.