Beihai Huihuang Langjie Environmental Protection And Technology Co,.Ltd (Group) is a chemical tower packing co***ny that integrates scientific research, production and trade activities,with self-supporting import and export rights.Our co***ny has passed the ISO 9001-2000 Quality Systems auditing given by the well-known systems inspection organization--- SGS-CSTC STANDARDS TECHNICAL SERVICES CO.,LTD.And now this systems are implemented well in all aspects.Our main products include: (1) ceramic tower packing...