大山熱工 Company Profile

Providing high quality with excellent craftsmanship! Responding to customer needs with the agility that only a small business can offer.

Ooyama Thermal Engineering specializes in heat treatment processes, particularly solution treatment of stainless steel, quenching and tempering, and precipitation hardening, as well as heat treatment for high alloy steels and non-ferrous metals (such as titanium and Monel). We accommodate heat treatment even for small items that fit in the palm of your hand, including individual products. In addition to stainless steel, we handle a wide range of steel types. Since our establishment, Ooyama Thermal Engineering has been committed to meticulous and flexible responses that only a small company can provide, striving for improvement every day. We also welcome consultations from the planning stage, so please feel free to reach out to us.