Vials, Caps & Septa>
Tianjin Bonna-agela Technologies Co., Ltd.
Filtration Products
Tianjin Bonna-agela Technologies Co., Ltd.
Pesticide Residues analysis Solvents
Tianjin Concord Technology Co., Ltd.
analytical Grade Reagents
Tianjin Concord Technology Co., Ltd.
Supplies and accessories
Wuxi Galak Chromatography Technology Co., Ltd.
WelEasy automated SPE
Welch Materials (Zhejiang), Inc.
analytical Instruments
Zhengzhou Yinxu Instrument Co., Ltd.
MP diaphragm vacuum pump, vacuum system
Zhengzhou Greatwall Scientific Industrial and Trade Co., LTD.
Low temperature circulating vacuum pump
Zhengzhou Greatwall Scientific Industrial and Trade Co., LTD.
Solvent recovery unit
Zhengzhou Greatwall Scientific Industrial and Trade Co., LTD.
10~25 cold water machine
Zhengzhou Greatwall Scientific Industrial and Trade Co., LTD.
Circulating cooler
Zhengzhou Greatwall Scientific Industrial and Trade Co., LTD.
Ultra low temperature cycle cooler
Zhengzhou Greatwall Scientific Industrial and Trade Co., LTD.
Constant temperature circulating device
Zhengzhou Greatwall Scientific Industrial and Trade Co., LTD.
Cold trap
Zhengzhou Greatwall Scientific Industrial and Trade Co., LTD.
Rotary evaporator
Zhengzhou Greatwall Scientific Industrial and Trade Co., LTD.
Glass reaction kettle
Zhengzhou Greatwall Scientific Industrial and Trade Co., LTD.