Specification: 1. Wire diameter: 0.025mm 2. Mesh count: 80mesh/inch 3. Aperture:0.2925mm 4. Open area: 85% 5. Weight: 25grams/m2 6. Material: stainless steel wire 7. Roll of width: 0.60m to 3.00m 8. Roll of length: 10m to 200m 9. Packing: waterproof paper with plastic cloth,  then put into paper tube and wooden case.   Stainless Steel Wire Mesh is the preferred material for shielding electronic equipment against electromagnetic interference. Applications include electronic security, aviation, outer space exploration and research, power generation, electronic information security, high-frequency scientific and medical equipment, measuring and testing devices, government and military secrecy devices and security systems.