... quality, low cost&fast delivery. Welcome To Rigao Single-side or multilayer pcb with smt and dip assembly ... 4,CEM-1,CEM-3,Hight TG,FR4 Halogen Free,FR-1,FR-2,Aluminum3Board thickness0.2mm-7mm4Max ... spaceing0.075mm(3mil)8Surface finish/treatmentHALS/HALS lead free,Chemical tin,Chemical Gold,Inmersion Silver/Gold, ... method for PCBA3.View of Rigao Factory single-side or multilayer pcb with smt and dip ...