New meter spare parts and material (mainly new switches and function material for meters such as intelligent sensors, electrical adapters, flexible circuit plate, fibre switch, and proximity switch)

• 新型仪表元器件和材料(主要指智能型仪用传感器、仪用接插件、柔性线路板、光电开关、接近开关等新型仪用开关、仪用功能材料等)