We serve your needs of stainless steel, steel, metal cutting work, and round steel.

Steel sale/ Inventory List

Round steel (Peeling, acid wash, polishing)
Round steel is our leading product. We have various types and sizes of the product in order to satisfy all needs of our clients.
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Hexagonal steel (Acid wash, skin pass)
We have various types and sizes of hexagonal steel products, and we can satisfy all of your needs such as small volume work or a cutting work.
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Steel sale/ other products

About Matsuikozai, Inc.

We serve your needs of stainless steel, steel, metal cutting work, and round steel.

Founded in 1934, we have built trust and a positive track record as a wholesale company of steel products for more than 70 years. Since the commencement, we have been following the demand of vast variety of steel material and established stable supply of precision steel products. As a specialist of steel work, we make great efforts to meet the need of the ever changing market. We will continue our endeavors of supporting technology-oriented Japanese society in future too.

Matsui Group

Stainless product


We have been mainly manufacturing using precision machine process (for small volume products). We have good track record in especial steel, stainless steel, heat resistant steel, and nickel alloy steel work, hence we can satisfy customer's needs with high cost-efficiency.

Matsui Machine Ltd.


We are responsible in engineering and material processing work. We help you in planning your plant facilities such as distilling tower, stainless steel products, stainless, and steel material.