对于由无外壳或机箱的电路板组成的产品（例如被安装到计算机的数据采集板），如果按照说明操作，则无需清洁。

Products that consist of a circuit board with no case or chassis (e. g. , data acquisition board for installation into a computer) should never require cleaning if handled according to instructions.

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代工产品包括扭矩传感器、加固计算机、标准机箱机柜、自动化生产流水线等产品。

OEM products include Torque Sensors, Reinforcement of Computer, Standard chassis, automated production line and other products.

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