NanTong Rongheng Environment Equipment Co.,Ltd. established in 2009(previous nantong hengrong blower & pump factory) .is the first factory succeded in developing and mass producing general three lobe roots blowers, anti-explosive three lobe roots blowers. with tremendous techology technology strength, advanced design, superior facilities and complete test measures, our enterprise is the largest professional manufacturer of three lobe roots blowers in China right now.