マルニシ Company Profile

As a locally-based industrial materials trading company, we support the creation of living infrastructure.

Marunishi Co., Ltd. is a company based in Okaya City, Nagano Prefecture, engaged in the sale of industrial materials such as steel, piping materials, and machine tools. We handle a wide range of products, from equipment piping materials like general piping steel pipes and stainless steel pipes to air conditioning equipment such as heating and cooling devices, supporting the stable supply of water, air, and gas for a comfortable living. For any inquiries regarding industrial materials, please consult with us.