Ningkai Instrument Co . Ltd is located in Nanjing , China , where own hundreds of universities and research institutes. And famous as its thousands of years long history culture. Profound culture and strong scientific research strength , provide sustainable and vigorous power for Ningkai development . Main products include Glass Reactor(single layer, double- layer and three- layer) , rotary Evaporator , Short Path Molecular Distillation , Heating Circulators , Heating Refrigeration Circulator , Low Temperature Circulator , Ultrasonic Cell Crusher , Industrial Ultrasonic Treatment Equipment , Ultrasonic Cleaning Machine , High(Low) Temperature Constant Temperature Trough , Hybridization Oven , UV Cross-linker , Flap Type Homogenizer , Dry Bath and etc .Ningkai Instrument has exported its products to Europe , South America , North America , Latin America , Asia , Australia , Middle East , Africa and etc . Providing technical support for tens of thousands organizations to solve problems within their research , special for university , research institutes, inspection agencies ,industries and etc . We have CE and ISO certificates , and the products we sell to the world markets with reasonable price