We,Changzhou Good-Job Biochemical CO.,LTD., are a comprehensive pharmaceutical manufactory composed by laboratory,factory,and export company mainly engaged in manufacturing and exportation of various of Animal antibiotic protection products, Human steroid hormone products and pharmaceutical intermediate originating from China. We can supply many kinds of veterinary antibiotic,such as chloramphenicol,Ranitidine hydrochloride ,Streptomycin Sulphate,Neomycin Sulphate,Oxytetracycline Hcl,Tetrac...