Hangzhou Ougu Building Materials Co., Ltd. has been focusing on the professional manufacturing of asphalt shingles and stone-coated metal tiles for nearly 20 years. The company's entrepreneurial vision, lofty aspirations, and hard work have laid the foundation for its development. Ougu is a pioneer and top manufacturer in the field of asphalt shingle manufacturing in China, owning a national-level laboratory and participating in the formulation of domestic asphalt shingle industry standards (GB/T 20474-2006 GB/T 20474-2015). The company has obtained ISO 9001, SGS, CE, Class A Fire Test, and other certifications. Ougu holds patents for innovations such as self-adhesive double strips and double-sided wind-resistance bonding colorful sand matching, maximizing the performance of modified bitumen and built-up roofing. Over the past five years, Ougu has imported advanced machinery and equipment from the United States and other countries to produce stone-coated metal tiles, continuing to expand our business in the field of roof waterproofing building materials. Through nearly 20 years of development, we now have six asphalt shingle production lines and six stone-coated metal tile production line. The company has over 150 employees, and our commitment to world-class quality standards and a customer-centric approach has helped Ougu attract distributors throughout China.