STAINLESS STEELS Series.
››The corrosion resistance of stainless steels come from chromium which react with oxygen to form a protective chromium oxide on the surface of stainless steels. To obtain a continuous oxide layer, stainless steels must contain at least 11% chromium.

COPPER ALLOYS Series.
››Among the nonferrous alloys, copper alloys are widely used in many applications. Because of their excellent electrical and thermal conductivities, good corrosion resistance, ease of fabrication, and good strength and fatigue resistance.