... ) NO. ITEM INDEX 01Surface treatmentHAL(lead free), Immersion Gold, OSP02LayerSingle-sided, double-sided, multilayer and special structure ... Mask0.15mm16The Minimum Pad10um17Solder Mask Colorgreen, white, black, red, yellow18The Minimum Letter Width0.15mm19The Minimum Letter Height0. ... 8mm20Letter Colorwhite, black, blue, yellow, red1high power aluminum clad pcb board2.aluminum base: 0.8-3 ...