... .Free sample 4.Basic chemical raw material 1. high quality of industrial naphthalene,technical naphthalene,Crude naphthalene,tar camphor 1 ... ] As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings. It is best known as ... Ada ada#bailichem.cn 0086-15081709808skype:hbadachem high quality of industrial naphthalene,technical naphthalene,crude naphthnalene,tar camphor