1.Engineer design 2.Mould master carve the mould with QC check 3.Case-casting components by the mould with QC check 4.Fill ash 5.Polish with QC check 6.Tapping with QC check 7.Drill hole with QC check 8.Clean oil 9.Welding 10.Spray the plastic outdoor powder with QC check 11.Led light with radiator with QC check 12.Assemble with QC check 13.Olding with QC check 14.Clean 15.Packing with QC check