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I want "chemical plant" to have a gentle side too, because the air pollution from chemical plant is very bad now. Don't want chemical plants to pollute the environment again, gray and no light.Let the rising black smoke become a small water mist to improve the environment; let the cold closed big house can also have light. It is hoped that the moment of turning the handle will be the warmth of improvement and surprise, rather than the black smoke and the gray house with no single color.