

Founded in 1983, DONGSEO MACHINE & TOOLS, a professional manufacturer of auto mobile parts, has been producing engine, transmission, and chassis parts. Through continuous R&D and based on the craftsmanship to pursue perfection using outstanding equipment and staten of the art technologies, the company has secured an unrivaled position in the aluminum engine and automobile parts industry.
In addition to swiftly and accurately supplying high-quality products to domestic and overseas automobile parts markets, the company leads the development of new Al alloy materials, new materials to reduce vehicle weight, and ecofriendly automobile parts.
Automobile Parts
Quality Management System, Health and Safety Management
System, Environmental Management System, New Technology High Pressure Die Casting (HPDC), VX420T, HS500, VX500, KV60N
Casting Process Simulation Technology
The company is a manufacturer specializing in automobile parts and produces engines, transmission housings, motor housings, and chassis parts.
The company develops and produces various casting products ranging from Korea's largest 3500 ton high vacuum die casting equipment to low pressure and differential pressure casting.
- Engine parts: Engine related parts such as engine block, crankcase, cylinder block, leather frame, oil pan, etc. Transmission housing: Gear transmission oil cooling housing
- Motor housing: Housing for electric and ecofriendly vehicle motor cooling and protection
-Chassis parts: Subframe parts to protect and support engine
The company holds 29 patents and utility models related to product development and production, and has developed technology for casting heat treatment and processing methods, securing the relevant technology as a leading company in Korea in the development of ultra high vacuum products and large scale die casting.
Gasoline cylinder
Gasoline cylinder
Diesel cylinder
Crank case
Ladder frame
Oil pan
Transmission case
Clutch housing
Converter housing
Motor housing
End cover
Front cover
Decelerator
Fuel cell electric
cross member
High-vacuum and high-pressure casting (UHV-HPDC)
High-pressure casting (HPDC)
Tilting-type gravity casting (GDC)
Low-pressure casting (LPDC)
Melting furnace