Mechanized Factory
In the last update, my image was missing some details. In this update, I have added some new graphs to describe the entire process. I visited a factory that produces lighter shells. The raw materials for the lighter shell produced in this factory include plastic, resin, and metal. "I interviewed the workers in the factory, and they didn't know where the raw materials were coming from. They just received orders and started production.". Most of the work in the factory is done by machine assembly lines. A small amount of work involves manual participation. The entire factory not only produces plastic lighters but also processes metal lighter shells. The only step in the processing of metal shells is to drill holes. They manually operate a drilling machine to drill holes in the already-shaped metal shell. It is worth noting that during drilling, workers spray water on the drill bit of the machine to cool down and wash away debris....