The company has complete inspection and laboratory equipment, and strictly follows the inspection and laboratory operation procedures. It is recognized by international quality system certification. The company’s production of Huaao brand, Huafeng brand SBS, APP modified asphalt waterproofing membrane, HA/HFll5 · 120 series polyethylene polypropylene (polyester) composite waterproofing membrane and other products have obtained industrial product licenses issued by the National Building Materials Administration. We have obtained the promotion license and permission certificate issued by the Shandong Provincial Construction Commission, as well as the permission and filing certificates issued by the Linyi, Qingdao, and Weifang Municipal Construction Commissions. We have also obtained the measurement qualification certificate issued by the National Technical Supervision Bureau. We are a recommended product for China’s building materials engineering construction and have been awarded the contract abiding and trustworthy unit by the Weifang Municipal Administration for Industry and Commerce. We have also been rated as a consumer satisfaction unit by the Weifang Consumer Association.