We are manufacturer of Bon Acid 98.5% ,so we can ... is dedicated in the production and sale of Maleic anhydride, Betanaphthol, J acid, NSF, Coal Tar Pitch, Benzene, ... Anthrancene oil, It is one of key 100 cultivation enterprises of Hebei ... friendly company, Baotie is keenly aware of the importance of environment management expanded investment in environment-related ...