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We are proud that we have outstanding technology in producing by sand casting process most complicated aluminum parts with minimum allowance, such as the cylinder block, cylinder head cover, manifold, converter housing and oil pump housing etc. The technology is useful for those items of relatively smaller quantity but of high complexity and fine finish, which enables sharp curtailment of the mold costs that should be required if the same is produced by die/mold process. Actually, you may not be able to easily tell the difference of its sand casting products from those made from die molds.

- JY Proto is a company that specializes in fabricating custom-made, aluminum alloy parts for automobiles, ships, railcars, motorcycles, IT, medical devices and other industrial machines.

- JY Proto supplies diverse parts to global car companies and marine engine manufacturers in Korea and abroad. The company has been registered as a top tier vendor to Hyundai and Kia who have recognized JY Proto quality and technology capability.

- To produce most reliable quality products, JY Proto leverages its ISO 9001 certified, cutting-edge production system and fully integrated manufacturing process from design to quality assurance testing.
Prototype Development | Aluminum alloy parts | Prototype production | Sand Casting | High Precision Machining | aluminum sand casting | Aluminum Casting | JY Proto