The products produced in Hunan are authentic. According to Qichacha’s official website, Dayu ceramic tile adhesive is a product of Hunan Jinggong Dayu Waterproof Technology Co., Ltd. The company was established in October 2014 and is a comprehensive enterprise specializing in R&D, production and sales of green and environmentally friendly building materials. , its brands include Metalworking Dayu, which mainly produces waterproof, powerful tile adhesive and other products. It has excellent properties such as stable quality, green environmental protection, good durability and strong adhesion, and has won the trust and praise of new and old customers.