八木鋼材株式会社

A long business record enables us to secure various steels.
We answer all sorts of needs quickly regardless of the size.

Yagi Kozai Co. Ltd. has its origin in sales of steels structures. Given our long experience, we are highly confident about sales of steel structures.
The steel business is in the age of diversity; demands are various including low price, high quality and handiness. Answering these demands requires a huge task of securing various steels.
Yagi Kozai Co. Ltd. owns company warehouses and has the know-how and networks nurtured through the long experience. This enables us massive buy-ins and both large and small quick supplies. Thus, ‘supplies according to the time and quantity of the customer’s choice’ has become possible.
Our business is highly appreciated by fabricators, general constructors, design offices and other business associates: they say ‘Yagi Kozai can supply anything’. This way, we support numbers of steel construction sites.

High-quality contracted jobs are founded on the mutual trust.
Our networks will realise customer’s ideals.

One of the pillars of Yagi Kozai Co. Ltd. is contracted jobs involving steel structures and reinforced concrete structures. Before a completion of a contracted job, various tasks need to be covered: securing materials, selecting fabricators, price setting, inspection for full-size drawing, and ensuring safety.
We ensure the quality of our contracted jobs by building networks with a first-class architect, first-class building operation and maintenance managers, and high-skilled constructors.
Not only do we secure materials as a professional steels company, we also introduce constructors suitable for each property and provide jobs for constructors as a part of our sales works.
Yagi Kozai Co. Ltd. works as an intermediary to bring benefits to both customers and constructors. Ours is a ‘mutually beneficial business’, the ideal form of contracted jobs.

The ceilings serve as a preventative measure against damages by the collapse.
INNSSOL SYSTEM gives excellent decorative and lighting effects.

Membrane ceilings are the next-generation ceilings using durable, light and flexible membranes. They can endure large shape-changings and strong impacts. Even in the unlikely event of collapse, they are credited to be highly safe due to their light weight. If installations above membrane ceilings drop, the ceilings can catch them. Membrane ceilings are extremely effective in an earthquake-prone country Japan while they also meet the needs of the modern age.