RoHS compliant circuit board

4 Layer PCB Rigid Circuit Board Roughness for PTH ≤25μm Copper Plating ≥20μm Quality assurance with oil dip test of 260 degree * 10 cycles 1,4 layer / 1.6mm 2,Surface finish with the option of ENIG, OSP, immersion tin, Pb-free HASL 3,100% inner and outer pattern AOI inspection 4,100% AVI and Final inspection 5,Reliability test for every processing lot and every shipment 6,Compliance with UL, RoHS, Reach, SGS, ISO9001, ISO14001, ISO16949. 7,Quick traceability 8,Solder mask with the option of green, black, blue, red, white, yellow 9,Base material with the option of Shengyi, Nanya, Panasonic, Isola, Rogers and so on,