- Hunan Xiangnan Chemical Company
- MSM, Gas chromatography, dmso, ultrasonic cleaner.
- Address:No 98, Wuyi Road, City of Changsha, Hunan province,China Changsha, Huna
- China Excellent Vial Co.,Ltd
- chromatography consumables laboratory vial.
- Address:Fangjiada industrial ,Qiyun load,Gulin town ,Ningbo city Ningbo, Zhejiang
- Ningbo Excellent New Materials Co Ltd
- Sample Vials, Caps, Septa, Chromatography comsumable.
- Address:No.7 Jinyun Rd Huafu Industrial Zone, Yinzhou Ningbo, Zhejiang