... , no components left, etc2.Semi-finished products full inspection: to make sure no cold solder ,lack of components, no tin dross ... appearance, with right cables, etc4.Full inspection after burn-in: to make sure every unit with high temperature resistance, with power ,no ... cables , no bad ultrasonic bonding, etc6.Visual full inspection: to make sure no scratched case, no cracked wires ,no missing screw ...