Materials Technologies

Providing thinner, flatter and more precise metal foils to customers.

High-precision thickness (Ensuring to increase the precision of the amplitude thickness twice as compared with conventional way)

Measurement result by three-dimensional shape measurement instrument

Improvement of flatness (Pursuing higher flatness)

Appearance	Glossiness	Surface Gs45°(%)	roughness Rz(μm)
sample A	Bright	730	0.30
sample B	Slightly bright	450	0.50
sample C	Dull	230	0.65
sample D	Dull (TW)	90	1.10

○ We will offer less warpage materials after etching processing.

We will offer materials of small residual stress.

We can roll various products such as stainless steels, nickel alloys and copper alloys to 2-5µm ultrathin stainless foils.

Linewidth stainless steel foils (width 4mm)

Wide stainless steel foils (width 600mm)

List of foil products

ASL is a registered trademark of Proterial, Ltd.
We consider the possibility of producing materials other than listed above if needed.