pcb概念股是什么意思?pcb是芯片还是半导体?

pcb概念股是什么意思?pcb是芯片还是半导体?

pcb概念股是什么意思?PCB(Printed Circuit Board)称为印制电路板,又称印刷线路板,pcb概念股指的是印制电路板概念股,指股票市场中主营