China's new building waterproof materials are generally divided into six categories, namely: high polymer modified asphalt waterproofing membrane, synthetic polymer waterproofing membrane, building waterproof coating, building sealing material, rigid waterproof and plugging waterstop material and special waterproof material. Since the application of asphalt linoleum coils in China in the 1950s, asphalt waterproofing materials have always been the leading products of building waterproofing materials in China, and their varieties, quality and output have been rapidly developed. As far as the overall proportion of new waterproof materials in China is concerned, asphalt-based waterproof materials are still the main products, accounting for about 65% of all waterproof materials, polymer waterproof membranes account for about 15%, waterproof coatings and other waterproof materials account for 20%. %about. The above contents are compiled according to the problems encountered by the students in the actual work, for reference, if there is any problem, please communicate and correct in time. Control System,Test Controller,Sub Controller,Main Controller,Master Controller,DMX Controller,Smart LED Test Controller StrongLED Lighting Systems (Suzhou) Co., Ltd. , https://www.strongledcn.com