No.15Anyang Roade,shangjie Zone, Zhengzhou, Henan, China,450041
Zhengzhou Greatwall Scientific Industrial & Trade Co.,Ltd. is a comprehensive company merging research, development, production and operation into single whole. Since the establishment in April, 1988,the has developed teaching instruments equipment ...
vacuum equipment , low temperature pump , chemical equipment,medicine equipment, refrigeration,food processing machinery ,dry baker,laboratory equipment,chemical equipment
