... : Packing in wooden box or in 3.Filter Cylinders performancegas filter , simple technology, good air permeability,even ... recovery rateconvenient installation, high efficient , long working time4.Filter Cylinders materialstainless steel mesh , iron mesh ,coppe rmesh ... ,steel mesh5.Filter Cylinders formWeave mesh, welded mesh, perforated metalCOMPANY INTRODUCTIONNinghai ...