... layers, FR4, Au. 2.Short Lead Lime. 3.UL,RoHS,SGS, ISO9001:2000 4.11 years PCB experience. PCB Boards Capability Material: FR4 ... , High TG FR4,Halogen Free material,CEM-3, Rogers HF material, etc. Layer counts ... : 1-16 layers Finished Copper Thickness: 0.5-5 OZ Finished Board Thickness: 0.2-6.0mm Min ...