... OEM SMT&DIP Service; 3, 1-22 Layer; 4, UL.ROSH SGS Certification; 5, High ... Welcome To Rigao Single-side or multilayer pcb with smt and dip assembly - Contract Manufacturing- ... (3mil)8Surface finish/treatmentHALS/HALS lead free,Chemical tin,Chemical Gold,Inmersion Silver/ ... /black/white/red/blue/yellow11Inner packingVacuum packing,Plastic bag12Outer packingStandard carton packing13Hole tolerancePTH:± ...