Our company was founded in Abeno-ku, Osaka in 1969 and named Yamamoto Special Steel Shokai. Given that stainless has many properties like lightness, We thought that there would be future prospects for stainless steel and started selling seamless stainless pipes with narrow diameter available and syringe's needles in stock. From that time on, Our company gradually focused more on the precision pipe field of seamless pipes. In 1986, Our achievements which we had accumulated since the foundation was recognised and we were chosen as an agent for KOBELCO STEEL TUBE CO.,LTD..

Due to long-standing issues, and with the aim of improving business efficiency, in 2014 the company's headquarters and warehouse were consolidated at newly-constructed facilities in Ishida, Minato-ku in Osaka.

Our products have been used in various ways from small devices for semiconductors to large ones for big plants. We do business with as many as 20 vendors from furnace steel's to re-rolling ones. We have pride in our sales force and facilities which enables us to give added value to our products and to satisfy our customers' diverse needs. It is our aim to be a company which makes more invaluable suggestions to every one of our customers with our accumulated know-how.

The sales of seamless steel pipes is up to 95% of our products. We deal in several sorts of them including clean pipes-ones with Bright Annealing or Electro Polishing finishes. Those sorts are used for plumbing, oil refineries, petrochemistry, heat exchangers, semiconductors, machine structures,etc.

New types of high-quality stainless steel e.g. SUS303,430,630 are now added to our products' materials. We have been selling stocks of duplex stainless steel pipes and fittings which are highly demanded these days.

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