... CPU,Power 4 20 years experiece 5 OEM OEM aluminum and radiator for LED, GPU, CPU, PCB Products Specification:1) ... company 1. Almost 10 years experience on aluminum extrusion profile, aluminum enclosure profile, aluminum heat sink, sheet metal parts, punching ... -arc welding machine, butt-welding machine, squeeze riveter machine, nail inserting machine. 4. Surface treatment: Anodizing, powder coating, ...