Indexing hole, reference hole refers to the circuit board in the manufacture of the plate corner or edge of the first tool hole drilled to other imaging transfer, drilling, or cut shape, and the basic reference point of the pressure process, said For Indexing Hole. There are other similar terms such as Indexing Edge, Slot, and Notch.
Good lighting in offices should provide a concise and bright environment to meet the needs of employees' work, communication, thinking and meetings, and maintain consistency and comfort between regions, so as to improve the efficiency of employees. At the same time, it can also spread a good image to visitors through office space
Office Lighting Light,Natural White Led Light,Indoor Led Light
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