About us

Name of Company Kuroiwa Stainless Industry Inc.
Name of president Yoshiaki Kuroiwa
Address (HQ) 109-13, Owadashinden, Yachiyo, Chiba JAPAN
Address (Factory & Warehouse) 109-14, Owadashinden, Yachiyo, Chiba JAPAN
Year Established August, 1982
Capital Budget JPY 20,000,000- (as of December, 2024)
Qualified Invoice Issuer
registration number
T3-0400-0102-0676
Own Brand "KURO"
Business Type Distributor, Importer, Exporter and Manufacturer
Product Stainless Steel Products
HP/UHP Tube (BA, EP, W-EP and Coiled tube)
Seamless Tube/Pipe, Welded Tube/Pipe,
Precision Tube, Miniature Tube, Decoration Pipe
HP/UHP High pressure Fitting (Socket and Auto Weld) Vacuum Component,
High Pressure Gas Connection (JIS, CGA, DISS, DIN, BS, AFNOR, GB)
Spring type Diaphragm Valve, Springless Diaphragm Valve,
UN, DOT, ASME Pressure Cylinder and Bubbler
Ultrasonic Level Sensor, Ultrasonic in-line sensor
Special Process/Fabrication Polishing (Mechanical/Electro/Inner and Outer Polishing)
Cleansing (Precision Cleansing/Oil Free Cleansing/Acid Pickled)
Welding (TIG Welding/Auto Welding/Electro Beam Welding and etc)
Pipe Bend, Machinery Fabrication, Various Surface Treatments,
Heat Treatment, Laser Cutting Process
Main Product Sources NIPPON STEEL STAINLESS STEEL PIPE Co., Ltd.
KUZE Bellows Kogyosho Co., Ltd.
Tokyo Seimitsukan Co., Ltd.
SANAI OBBLI TECH
Neriki Valve,.Co Ltd.
GASFLO PRODUCTS Inc.
Sensaras LLC
Precision Fabricators Ltd.

Various supply sources from Asia, Europe and North America

Kuroiwa Stainless Ind. Inc. provides superior quality stainless steel product with experiences for all customer demands for stainless, from ordinal tubing to high purity demanded products.

We stock various sizes of Stainless BA/EP tubes, Fittings for High pressure/High purity applications, Vacuum piping application, Gas connections, and fabricated products for customer’s special request. Our mission is to provide high quality products with fast delivery to meet customer where are Semiconductor Industry, Flat display panel manufacturing, Medical, manufacturing/Industrial processing, Lab at National Institution/Universities and recent new application with Hydrogen gas distribution tubing for Fuel Cell vehicle(FCV).

Since the company establishment in 1983, we continue to improve and strive to provide high quality products, fast response/delivery and well customer communication to build high customer satisfaction best in the business.

We would ensure our best to your business experiences working with us.

Yoshiaki Kuroiwa
Chief Executive Officer
Kuroiwa Stainless Ind. Inc.