... PC cover: transparent, frosted, striped 3 Two end caps 4 OD: 15mm OEM LED tube shell for T5, T8, ... , butt-welding machine, squeeze riveter machine, nail inserting machine. 4. Surface treatment: Anodizing, powder coating, nickel plating, powder painting ... of heat sink, metal hardware parts and punching parts according to customers' requirements with different material and process. We are insisting on ...