... metal frame: 1. Material: C.R.S. 2. Surface treatment: powder coating, painting, etc 3. IP Grade: IP 65 4. MOQ: 100pcs With ... from USA, Europe, Australia and Janpan, etc. Comments on sheet metal frame: 1. Material: C.R.S.2. Surface treatment: powder ... materials, sizes, surface treatments, shapes and sheet metal processing precision as per customers.With profound experience of about 30 years , we ...