Our small-diameter steel pipes occupy a significant market share.
Small pipes are our mainstay products.

Our 5 Strengths

• Small Diameter

  Any application possible starting from a 2mm outer diameter.

• Thinness

  Minimum 0.2mm thickness pipes can be produced.

• Dimensional Accuracy

  Superior dimensional accuracy to realize high precision and high quality.

• Small Lots

  Small lot production also possible including trial runs.

• Brand

  We offer special specification products treated with our unique cleaning method to remove surface deposits under the brand Akita Bijin Pipe®.

Cutting-edge technology and quality?reasons why Nishiyama Seisakusho is chosen by customers

• Technological Capabilities

  Our small-diameter steel pipes occupy a significant market share. Nishiyama pipes are utilized as important constituent components in vehicles, construction machinery, industrial machinery and more and enjoy a significant share of the market.
  By utilizing the high technological capabilities accumulated since our founding, we actively develop new technologies for responding to the needs of the current era.

  

• Production Capacity

  Daily drawing length of 250km is the best in the industry Our pipes are drawn an average of 3.1 times until production completion and have a daily drawing length of 250km, the best in the industry. At Akita Factory, our main factory, we continue to produce high-quality copper pipes in an outstanding working environment that is closely connected to the community.

  

• Quality Control

  Strict quality checks performed in each process. We are absolutely thorough in our quality checks at each processing stage, final product inspection and machine testing in order to ensure highly reliable products. Nishiyama acquired ISO9001 certification to realize product specs our customers demand and continuously improve our systems.

  

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  • Main Inspection Devices
    Draw testing machines	Digital microscopes
    Micro-Vickers hardness meters	Projectors
    Contour and surface roughness measuring devices	Bend testing machines