The registered address of bachhang environmental technology ltd., east chang city, is located in qingbrook town, east chang city. The registration authority is the market supervision authority of east china city, which operates in the areas of research and development, production and marketing: environmental materials; general mechanical equipment and accessories; production and marketing: wheel locks, space locks, security products, electronics, moulds, hardware products, waterproofing boards; environmental engineering; import and export of goods or technology (except for goods and technologies whose import and export are prohibited by the state or which involve administrative approval)