Tangshan Chaoyang Chemical CO.,Ltd was founded in 1989, which is a new high-technical enterprise authorized by the Science Committee of Hebei province of China. We have our own Imp&Exp license and acquired the ISO9002 quality management authentication in 1999, acquired ISO9001:2000 in 2002. Our main products include: de-carbonization series of products, medicine intermediate series of products and solvent of battery electrolytes series of products. They are sold well at domestic market and ...