18 Be familiar with the basic workmanship requirements for sealing-off, plastic, die-casting, sheet metal, cable, connector, ceramic, Photo Etch, PCB&PCBA etc. production.

• 熟悉注塑、塑胶、钣金、压铸、金属制品、电缆、连接器、陶瓷滤波器、蚀刻、印刷电路板及组装等产品的基本工艺技术；