Expanded metal security partitions is manufactured in two ways: raised expanded metal and flattened expanded metal. Raised expanded metal is also known as standard expanded metal, it has diamond openings with slightly raised surface.

Chrominum(Cr)Cr is the main element to decide the resistance of corrosion in stainless steel. Metal corrosion divide into chemical corrosion and non-chemical corrosion. Under high temperature, metal produce rust through oxygen, it named chemical corrosion. Otherwise, under normal temperature, this p