建筑外墙清洗行业具有投入少，见效快，市场大，利润高的特点。然而建筑外墙的清说却是一项技术性较强的工作。建筑外墙在露天长期日晒雨淋，各种烟尘，灰垢，以及锈迹与其表面结合十分牢固，极难清洗干净，目前各种清洗剂（包括进口瓷面及酸化清洗剂等）甚至强酸溶液，均无能 The exterior wall cleaning industry has the characteristics of less investment, quick results, large market, and high profit. However, the clear description of the external walls of the building is a highly technical work. The outer wall of the building is exposed to the sun and rain in the open air for a long period of time. Various soot, dust, rust, and rust are very tightly bound to the surface. It is extremely difficult to clean. At present, various cleaning agents (including imported porcelain surfaces and acidifying detergents) are even strong acids. Solution, all incompetent