Hangzhou Top Technology Co., Ltd. is committed to building a new generation of green rows of waterproof products special research and market development; company provides green roofs dimensional row-based underground space waterproofing products and system solutions. The company developed products to solve the underground space roof, side walls, floor, and many other exclusive waterproof problem, calling for "row-based, anti-row combination of" technology concept. By a group of companies engaged in related industries for many years, with the professional standards and practice of experienced personnel effort to build; company with a number of research institutes and design units in-depth cooperation, innovation, research and development of a series of new and old customers recognized multi-functional green products. We welcome all friends to contact us, we always provide you with information related to the product or program, and you grow together! If you want more detailed information about our products and services, please contact us! Website: www.toooooop.com