Knitted mesh Crocheted with a variety of materials, including stainless steel wire, red copper, hot-dipped zinc-plating iron wire, polyamide fiber and F46 fiber. Knitted wire mesh Has good air permeation. Knitted mesh General Use: Filter mesh for gas and liquid serves well in filtering and deleting the particle mixture in foam, liquid and air, by way of distillating, absorbing, evaporating and filtering process, in petroleum, chemicals, metallurgy, machine, pharmaceuticals, automobile and environmental protection.