... life expectance after PVC coatig and Gal. factory offer construction site security fenceOur company supplies many kinds of wire mesh fences , mainly ... , railway, airport, seaport, feeding ,husbandry, garden fences, decorative fences, security fences, barbed wire fences, expanded metal fences, and etc. Material ... , hot-dipp galvanizing, PVC spraying and PVC coating. construction site security fence