... : green ,yellow,black,white. Red, blue10) Copper thickness in hole:35.0 um /1mil11) Inner packing:vaccum packing/plastic ... 0.0515) Certificate:UL. ISO9001,ROHS,16) Special requirement:Buried and blind vias+ controlled impedance +BGA17) Provides OEM services to all ... sorts of printed circuit board assembly as well as electronic encased products. touch panel flexible board for Ipad