Zhengzhou Eastar Instrument Equipment Co.,Ltd. (a branch of Nanbei Instrument Limited). It has been exported to more than 100 countries around the world for 20 years , and it is one of the largest and the most comprehensive instrument and equipment manufacturers in China. It integrates research,development,production and sales as one of the independent legal personality persified technology group. The headquarter is in Zhengzhou (International Air Port Area),China. And it also has the office in Beijing, Shanghai,Shenzhen and Hong Kong of China. Nanbei had obtained ISO9001:2015 quality management system certification,SGS certification,and its products had passed EU CE certification and RoHS certification.