Founded in 1988, Zhengzhou Greatwall Scientific Industrial and Trade Co., Ltd. has grown to be a technological innovative enterprise integrated with researching, developing, manufacturing and modern management. Over decades of R&D and continuous technological innovation, we have provided professional equipment for research and industrial applications like chemical, biological, pharmaceutical industries, new materials, new energy, electronics, metallurgy, petroleum, mechanics and other fields. 'Greatwall' has been concerned and known as one of the most trustworthy brand in above mentioned fields. Our products have been exported to Asia, Europe, America, Australia and covered most universities, scientific research institutes and laboratories in China.Three main series of products: temperature control system, vacuum system, distillation and reaction system, including Rotary Evaporator, Glass Reactor, Water Circulating Vacuum Pump, Diaphragm Vacuum Pump, Dynamic Temperature System, Recirculating Chiller, Stirring Reaction Bath, High Temperature Heating Circulator, Thermostatic Magnetic Stirring Bath, etc. We have professional R&D team which is leading by professors and senior engineers. Owe to their devotion, more than 70 national patents have been registered and "Greatwall" has been recognized as National High Technology enterprise. We have been cooperating with Universities and Research Institutes to build up associated laboratories, teaching and practice base.All management is conducted in accordance with ISO 9001 International Quality system since we passed the certification. We strictly complied to 6S managing principles in every process from office to workshop. Our modern production and quality control system makes every procedure controllable and traceable from raw material purchasing to product dispatching, which ensures every single product is reliable.

Picture	Certification Name	Certified By	Business Scope	Available Date --- Expired Date	Verified
	OHSAS18001	CQM	Design and manufacturing of high&low temperature source and temperature control equipment used for teaching and scientific research (closed cooling and heating circulating device, recirculating chiller, high temperature circulator, low temperature cooling liquid circulating pump, low temperature constant temperature stirring reaction bath, thermostic constant temperature magnetic stirring bath), vacuum obtaining and control equipment(diaphragm vacuum pump, multi-use water circulating vacuum pump), separation and reaction equipment(rotary evaporator, glass reaction kettle) and relevant management actifities	2018-05-17 ~ 2021-05-17	Verified
	ISO9001	CQM	Design and manufacturing of high&low temperature source and temperature control equipment used for teaching and scientific research (closed cooling and heating circulating device, recirculating chiller, high temperature circulator, low temperature cooling liquid circulating pump, low temperature constant temperature stirring reaction bath, thermostic constant temperature magnetic stirring bath), vacuum obtaining and control equipment(diaphragm vacuum pump, multi-use water circulating vacuum pump), separation and reaction equipment(rotary evaporator, glass reaction kettle)	2018-05-17 ~ 2021-05-16	Verified
	ISO14001	CQM	Design and manufacturing of high&low temperature source and temperature control equipment used for teaching and scientific research (closed cooling and heating circulating device, recirculating chiller, high temperature circulator, low temperature cooling liquid circulating pump, low temperature constant temperature stirring reaction bath, thermostic constant temperature magnetic stirring bath), vacuum obtaining and control equipment(diaphragm vacuum pump, multi-use water circulating vacuum pump), separation and reaction equipment(rotary evaporator, glass reaction kettle) and relevant management actifities	2018-05-17 ~ 2021-05-16

Business Type	Manufacturer, Trading Company	Country / Region	Henan, China
Main Products	Teaching and Research Special Instruments (Water Circulating Multi-purpose Vacuum Pump, Low-temperature Cooling Liquid Circulating Pump, Double-layer Glass Reaction Kettle with Variable Frequency Speed Control, Rotary Evaporator, Integrated Thermostatic Magnetic Blenders	Total Employees	101 - 200 People