... price 2, high quality 3, quick delivery 4, considerate services red single-sided pcb its characteristic is that the internal sress ... The range: BONGDING board and card board, general communication products, computer card board and consumer electronic products, electronic toys, game machine ... /Gold,OSP,Gold PlatingSolder mask color:white ,black,yellow,red,green ,blueProfiling:Punching,Routing,V-CUT ...