DescriptionType : Hand Tool PartsOrigin : Mainland ChinaUsage : Home DIYModel Number : Filter ScreenType : Hand Tool PartsProduct Specification:Brand new and high qualityMaterial: 99.9% copperSize: Approx. 7.5x7.5cm/15x15cm/15x50cm/30x30cm/30x60cmPlease keep the product in a dry environment. Copper is easy to be oxidized.Product Features:1. Electromagnetic radiation protection, effectively blocking the harm of electromagnetic wave to human body.2. Shields electromagnetic interference to ensure normal operation of instruments and equipment.3.Prevent electromagnetic leakage and effectively shields electromagnetic signal of display window.Location of use:Case, cabinet, ventilation window, laboratory, machine room, strong current and weak current room, radar station, instrument display window, etc.How to choose mesh1.Community shields base station and cell phone tower, choose 80 to 100 mesh2.Factory use 100 to 200 mesh3. Higher requirements, use more than 200 meshPacking quantity: 1pcs x copper mesh(Delivery according to your choice)Note:Please allow 1-2cm error due to manual measurement.Satisfaction GuaranteeOur first priority is to provede you with an easy,pleasant,and anxiety-free shopping experiencewe try our best to give a clear,candid,and complete description of our products and their conditionswe are always ready to help if you have questions or encounter a problem ,but if for any reason you arenot satisfied with a product or service please do not hesitate to contact usIt is very impottant to us that you have a positive & 5 star transaction with us.please contact us promptly before you leave us negative feedback.we weill try our best to resolve you problem.If I am not online,please leave your message,we will reply you once we log in.we reply every message except we have not get your message.Refundwe accept refund if product not as decribedIf the goods are damaged.Please provide photos.We can give you a full refund.Or send you a new itemIf the product is lost. Or the wrong number. If we make a mistake. We accept partial refund compensationServicesAfter receiving the payment. We will send the goods within 12 hours