Since it depends on existing staffs' handwork, the quality isn't constant.

It has difficulty to set complete system since work proceed on the site that makes rough surface.

A 100% automation equipment helps to keep consistent material quality all the time.

It is necessary to get SHOP DRAWING for producing steel structure drawing which requires lots of drawing. Plus, this task requires experts, thus taking much time.

In the process of raw material supply, the factory production takes long time since it has complicated process. Therefore, it is imprecise.

Thanks to automation program, the structural calculation and steel structure drawing process in a very short time. Moreover, the automated facilities helps to manufacture automatically that shorten completion time and increase stability.

We use metal bracket which is easy to produce in large quantities and gurantee performance.

Most of sub-materials are hot rolled molding products, which means it is so thick that it has possibility of excessive design. Typically, it is usual to construct small-sized building by experience without accurate structural calculation. Therefore, it is hard to expect its stability.

A structure-exclusive program design structure layout perfectly using the best sub-materials.

According to practical building test and analysis, strength and stiffness of structure are guranteed.

A general steel member needs to be coated for rust prevention which results low reliability. Plus, it is necessary to re-paint over and over to smooth edged surface.

Every material is manufactured using hot dip galvanize steel sheet(HGI), guranteeing rust prevention. Furthermore, it stays longer than usual rust preventative painting.(semipermanent)

It is impossibile to reuse sub-materials since they are joined with welding and bolts.

Recycling is available in case of using 100% prefabricated structures for moving by disjointing and re-jointing connection bolts.

A complex construction process, low construct ability, and excessive field works such as welding on site or high tension bolt assembly take lots of time.

Reconstruction occurs using Touch-Up paint after initial painting in the field. Thus, the construction periode and quality is low.

Most of construction proceed in factories. Thus, only assembly work is required in a field which reduce construction time. (661m2 scale: about 2 days)