Protective net sleeving,are used for protecting machine metals,bottles,ceramics,tools,ornaments and so on. Protective Net SleevingLDPE Polyethylene Sleeving. A variety of expanding mesh sleeves that resist acids and solvents, unaffested by oils. These tubes are flexible enough to mould around irregular shapes and perfect for protecting Machined metals, Bottles, Ceramics, Tools, Ornaments etc.