Sumiju Precision Forging Co., Ltd.

SPF, is a Japanese company established in 2003. The company supplies precision forgings for heavy-duty use, such as jet engine blades and other components along with turbine blades for power generation that require high performance and reliability, and also supplies those for other use.

The company's advanced facility, is located in SHI Yokosuka Works, integrates all production processes under one roof - from forging and heat treatments to final machining - allowing it to cover a wide range of market needs including forged raw materials, precision forgings, and finished machined products.

In the field of forged titanium alloy blades and forged nickel alloy blades for jet engines, SPF is the only one Japanese manufacturer with overwhelming shares.