The products of our group contribute in various scenes in our living.

Our Four Main Business

Special Steel Bars BusinessManufacturing Hot-Rolled Special Steel Bars for Construction Machinery and other use

Bloom Continuous CasterBloom Continuous Caster

Full Continuous V-H Rolling MachineFull Continuous V-H Rolling Machine

Steel Bars (alloy steels for machinery structure, carbon steels, spring steels, etc.)Steel Bars (alloy steels for machinery structure, carbon steels, spring steels, etc.)

Product Steel Bars (alloy steels for machinery structure, carbon steels for machinery structure, spring steels, tool steels, non-heated steels, free-cutting steels, bearing steels, etc.)
Production Base Domestic: Muroran City, Hokkaido, Japan
Overseas: Indonesia
Principal Final Use Construction Machinery, Automobile, Industrial machinery, etc.
Characteristics Unlike most of special steel manufacturers using materials from electric furnace, we produce special steels from blast furnace molten iron.
We offer products with a wide size range
(round bar: φ19~φ350, square bar:60~350㎜)

Springs BusinessJapan's sole integrated spring manufacturer, covering every process stating form material to final product.

Coil SpringsCoil Springs

Stabilizer BarsStabilizer Bars

Heavy-Duty Coil SpringsHeavy-Duty Coil Springs

Leaf SpringsLeaf Springs

Hinges for various useHinges for various use

Products Coil Springs, Heavy Duty Coil Springs for Construction Machinery, Information and Communication Equipment Parts (mechanical components, antenna, etc.), Automotive Service Parts, etc.
Production base Domestic: Ichihara City, Chiba Pref. Japan
Overseas: Canada, U.S.A., China, India, Philippines, Mexico
Principal Final Use Automobile, Construction Machinery, Information and Communication Equipment, etc.
Characteristics We offer large selection of products from precision springs to supersized springs through an integrated production system from materials to products. Our market share for heavy duty coil springs for construction machinery enjoys largest proportion in the world.

Formed & Fabricated Products BusinessApplicable to a wide range of fields

Wear-resistant Cast Steel Products(wear-resistant steel casting in superb quality for earthmoving equipment)Wear-resistant Cast Steel Products
(wear-resistant steel casting in superb quality for earthmoving equipment)

Super-alloy powdersSuper-alloy powders

Precision Castings(turbocharger parts)Precision Castings
(turbocharger parts)

Precision Forgings(parts for the fuel injection device)Precision Forgings
(parts for the fuel injection device)

Magnetic ProductsMagnetic Products

Products Precision Castings, Special Alloy Powder, Wear-Resistant Castings for Construction Machinery, Casting Magnets, etc.
Production base Domestic: Aizuwakamatsu City, Fukushima, Japan
Overseas: Thailand
Principal Final Use Automobile, Construction Machinery, Industrial Machinery, etc.
Characteristics We manufacture casting and forging products applicable to a wide range of filed, through casting and other processing technology.

Machinery BusinessSupporting basic industries with Machinery and Plant Engineering technology.

Forging Machinery (Forging press)Forging Machinery (Forging press)

Forging Machinery (Ring Rolling Mills)Forging Machinery (Ring Rolling Mills)

Environmental Protection Plants (Hydrothermal Treatment Plant of Sewage Sludge) , METHASAURUSEnvironmental Protection Plants (Hydrothermal Treatment Plant of Sewage Sludge) , METHASAURUS

Products Forging Machinery, Steel Fabrication, Environmental Protection Plant, Magnetic Separator, Vibration Isolator, Scaling Systems, Conveying Systems, Grab Bucket, and other General Industrial Machineries
Production base Domestic: Nagasaki, Japan
Characteristics We expand a wide range of products based on engineering technology developed as a leading manufacturer of forging machinery.