... of SF/D-331 powder.Metal protected.Carbon steel, steel alloy, stainless steel, aluminum and its alloy.ClearnessTo move powder residues easily ... degree temperature For 12 months.Note: effective to copper and its alloy, galvanized steel, tinned plate, printed plate, can also for ... non-ferrous and coated metal unless it pass testing VCI powder for ferrous metals, VCI powder for steel and iron products