... double-sided pringting technology,can change color and picture of a light box picture with lights and without lights3) high precision,8 ... HP, we bulid Golden colour-HP " T50" factory and art craft workshop.6) main customers are HP ,P&G, Toyota, ... flag banner,advertising sticker,car sticker,etc) , display equipment (roll up,poster,x banner,advertising display ,etc),light box ,acrylic products , printing ...