... 2,Finish:polishing 3,Competitive Mechanical fittings factory price Steel Bracket Detail Feature: Materialsaluminum,alloy steel,brass,stainless steel,al ... alloy and so on Software for drawing PRO/E, auto CAD,CAD,PDF and solid work 2001 Precision machine ... they are widely used in machine, equipment, vessel, railroad, auto parts, hardware tool, building reconstruction, engineering machines etc Primary ...