Environmental protection is a way to protect the environment on individuals, organizations or government level, for the natural environment and (or) the benefit of mankind. As the population pressure and our technology, bio-physical environment is degraded, and sometimes permanent. This has been acknowledged, the government began to restrict the activities causing environmental degradation. Since the 20th century, the environmental movement 60's created by the initiative of environmental issues. Without an environmental impact of human activities and protection measures are fully consistent with the level of criticism is sometimes.

Academic institutions and businesses is now available, such as environmental studies, environmental management and environmental engineering courses, research the history and environment protection methods. Protecting the environment is human activity needs. Waste, pollution, toxic substances released, is related to environmental protection problems. Shanghai Yongxian Machinery Manufacturing Co., Ltd. manufactured the first machine drying, crushing, grinding and other series equipment is environmentally friendly and energy saving features.

Shanghai Yongxian Machinery Manufacturing Co., Ltd. is a group company with nearly twenty years experience in machinery and equipment manufacturing. Yongxian is a key enterprise specializing in researching and manufacturing drying equipment and crushing equipment, and we are also a manufacture and export base of rotary dryers, rotary kilns and flour-making, sand-making and stone-crushing equipment.