Beijing Lianhua-Land Technology Development Co.,Ltd

Including China, science and technology is to gather the enterprise developing ,  producing , selling the high technology in an integral whole.In 1982 invented the first Chemical Oxygen Demand fast cryoscope in the world.( In American?CHEMICAL ABSTRACT? records).The first Chemical Oxygen Demand have monitored an instrument inkstone effluence in the homeland on line voluntarily in 1989 [详细介绍]