Shanghai Long Way Environmental Technology Co., Ltd. is a high-tech enterprise that integrates technology research and development, engineering design, engineering general contracting, equipment manufacturing, installation, and sales. It is a specialized and innovative enterprise at the municipal level in Shanghai. Currently, the company has the qualification certificates of "Level 2 Professional Contracting for Building Mechanical and Electrical Installation Engineering", "Level 2 Professional Contracting for Environmental Protection Engineering", "Safety Production License", "General Contracting for Environmental Pollution Control Engineering", "Design of Wastewater and Waste Gas Treatment Engineering", as well as more than 30 inventions, utility models, software copyrights, and technological benefits of waste gas and wastewater treatment equipment and online monitoring equipment. The company's marketing and service networks are aimed at the whole country, Japan, the United States, Southeast Asia, and the Middle East markets. Its business includes acid-base gas treatment. The VOCs waste gas treatment, silane waste gas treatment, industrial dust removal and other waste gas treatment; Industrial pure water, wastewater, domestic sewage, and recycled water treatment; Langwei products are widely used in industries such as semiconductors, photovoltaics, pharmaceuticals, chemicals, electronics, and electroplating. Anhui Langwei Environmental Technology Co., Ltd. is a wholly-owned subsidiary of Shanghai Langwei. The main products produced include fiberglass towers, storage tanks, pipelines, valves, and environmental protection equipment for waste gas and wastewater treatment made of stainless steel, carbon steel, and PP materials.