... R.S 2.Finish:powder coating and silk printing 3.Salt spray test proving; power switch control box1.Material:C.R.S2. ... Finish:powder coating and silk printing3.Salt spray test proving4.IP grade:IP54-665.Different colors and shapes ... , Drilling> Powder Coating> Assembling painted components 2) Surface treatment: spray-paint, Silk Screen, Power Coating, Polish &BrushSand–blast, zinc/ ...