... indicator labelsone single dot : 8%,10%,40%,50% ,60%,500pcs/can, three dots: 5%-10%-15%, 5%-10 ... four dots: 10%-40%, 20%-50%, 30%-60%..... six dots: 10%-60%.......OEM services allowed ( customer size, shape and printings ... LED, SMD LED, IC, electronic packaging , optical equipment,electronic equipment packaging, Electronic products , optical components, military products , metal products , Organic ...