The filler metal tower packing is made of materials such ascarbon steel,stainless steel and aluminum alloy it withthin-walled,heat,porosity,flus,low pressure drop and highseparation effociency.Vacuum distillation column and treatment ofallergic and easy to break ,,easy close-fitting,seay to knot thecarbon materials,Which are widely used inpetrochemical,fertilizer,chemical industry,environmental protectionand other industries.