... , lime, activated clay, activated carbon, bentonite, kaolin, cement, phosphate rock, gypsum, glass, thermal insulation materials mok' ... Innovation, Mutual Benefit.Company informationGongyi City Songling Tengda Machinery Factory was estabulished in 1980s, our plant has undergone ... equipment of mining selecting, compound fertilizer production line, cement production line, sand making line, composite vent- ...