... surface treatment, eg:anodized 3.Welcome to OEM. led light tube led light tube 's specificatin: SizeDIA 30mm*L500mmMaterialaluminum alloy ... ,anodized sliver ,anodized bronze, etc.Application LED light,LED street light,cap-lamp,down light etc. Asage and advantage:A. Compression ... extrusion profile, aluminum enclosure profile, aluminum heat sink, sheet metal parts, etc.B. 2500 square meters workshop and ...