... 3. ISO verified factory 4. Good performance aluminum die casting sun-flower led street lamp shade Material Aluminum alloy, A380, ADC 10, ADC 12, Design ... , Stamping, Die/pressure casting, CNC processsing, Punching, Riveting, Bending, Cutting, Welding, Threading, Grinding, Milling, Machining, Assembly, etc Surface treatmentannealing, natural anodization, heat treatment ...