expanded metal mesh: fencing for road, railway, civil building, water conservancy's construction; protecting of all kinds of machines, electrical equipment, window and aquatic product's breeding. material: aluminum plate, low carbon steel plate, stainless steel plate, aluminum alloy plate, copper plate and nickel plate. thickness : from 0.5mm to 8mm. opening shape: diamond, square, round, triangle and scale-like opening. characteristics: easy operation, long work life, enduring, graceful.