... steel sheet,copper sheet,PVC coated sheet.Specification:the hole shape are rectangle,aquare,round,triangle,ellipse,are ... and so on.Also named mine screen mesh, mechanic screen mesh. It can be supplied in folded or ... metal plate or nonmetal pieces. Punched openings can be round, square, triangle, diamond, hexagonal, cross, etc. The opening size ... , thickness from 0.2mm to 10mm punching hole wire mesh