... sheet metal,steel curtai & stainless steel sheet in metallurg Acid filterThe waste filter we produce is made with imported ... metal voluble graphite, ring nuts, loose joints and bolts.Acid filter for metallurgy industryDouplex filter-HBL SeriesStainless steel line strainer ... such as air filter, water filter, oil filter, carbon filter, acid filter, oil purifier, filter bag, bag filter, filter cartridge , ...