... ,SGS,CIQ,COA,MSDS,COA 4.supply free sample 1.Hot sale light yellow transparent Liquid 99.9% crude benzene,pure ... , toluene, xylene and other products, benzene, toluene, xylene is precious basic organic chemical raw materialsIf you are interested in our products ... feel free to contact me ada#bailichem.cn 0086-15081709808 Hot sale light yellow transparent Liquid 99.9% crude benzene,pure ...