Industrial domain

Machinery & Elec. Equip. Design & Assembly


Nippon Steel & Sumikin Welding Co., Ltd., Chiba Plant

We are a general manufacturer of welding materials and welding machines & equipment.

Nippon Steel & Sumikin Welding Co., Ltd. was created as a corporate spin-off that integrated Nippon Steel Welding & Engineering and Sumikin Welding, the departments in charge of welding products of Nippon Steel Corporation and Sumitomo Metal Industries, Ltd., which are among the world's big steel makers. With development coupled with iron of welding materials, welding machines & equipment, and systems for welding operation allowing us to have one of the world highest working requirements, we tackle everyday challenges as a general welding machine & equipment manufacturer to respond to the demands of welders.
Postal code


Address 7-6-1 Higashi-Narashino, Narashino-shi
Phone number +81-47-479-1171

Japanese only

Fax +81-47-475-6430
Representative director

Katsuyuki Sasaki, Plant Director


Capital 2,100million yen
Number of employees 200

Business activities

Manufacturing of electric welding machines & equipment (manufacturing of welding materials and welding machines & equipment) - Design, manufacturing, and sale of welding machines & equipment We design, manufacture, and sell labor-saving welding machines & equipment corresponding to each welding posture and application. - Manufacturing and sale of welding materials We manufacture and sell superior welding materials, from general purpose to high-quality ones, to match every situation.

Main products and processes

(Products) Solid wires, submerged arc welding materials, flux cored welding wires