Our partners include Sinopec, China Aluminum Group, China National Building Materials, Conch Cement, Yatai Cement, Tower Cement, BBMG Jidong Cement, Ruitai Technology, Beijing Tongda Refractory, Luonai Institute, Pu Nai Group, Beijing Leer, Hengnai Group and other units have been praised by the industry for their quality over the years.