https://www.dongenprecision.com/lampshade.html
Description: Auto parts
Process: Aluminum die casting, CNC
Material: ADC12
Surface treatment: sandblasting, passivation, powder coat
Tolerance: +/-0.01mm
Requirements: Flatness, air tightness, finish
Material Certification: Supply SGS Rohs report
Quality control: 100% inspection before delivery
https://www.dongenprecision.co....m/CNC-lampshade-proc