This is green soldermask and white silkscreen muntilayer pcb board,mount many components on it,Capacitance,Resistance,Inductance,IC,Diode,transistor,Transformer,Connector and so on.Some customers need PCBA test and Conformal Coating service,we also can provie these services,Almost all electronic products require PCBA boards, and the PCBA boards we produce are used in various products.