We are professional PCB manufacturer with ten years experiences . Products range-single, double side ,multi-layer PCB ,flexible PCB and MCPCB.We can provide fast prototype service - S/S in 24hrs , 4-8layers in 48-96 working hrs production time. COPPER PLATE HOLES MINIMUM .025 AVG, .020MIN.. HOLES MAY NOT BE PLUGGED Pack with colorless transparent bubble film ,25PCS/ bag, put desiccant in flank, put humidity indicator