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.

According to the different structure of the web part of the paper machine, the paper machine can be divided into: long web type, round web type, clip web type, stacked web type and with finishing roller type.The paper machine can be regarded as a kind of linkage machine composed of several equipment