Expanded metal mesh 1, process takes regular steel 2, expands it ... a diamond pattern,or others. 3,OEM,building in 1986. Expanded metal mesh specifications:StyleDesignationStrandWidth(in inches)Wt. in Lbs.per ... 3.43751.5625 x 3.37580 to 8582 to 86 Expanded metal mesh Expanded metal packaging: Expanded Metal flattened: