Henan Touch Science Instruments Co.Ltd. is based in China and lists the Lab Vacuum Rotary Evaporator for Herb Extract on Global Trade Plaza. The company states it was established in 2016. The product is described as an R-series rotary evaporator used in lab, middle-scale testing, and production across biological, pharmaceutical, chemical, and food industries. It features a Teflon (PTFE) and fluorine rubber double rotating seal, patent technology for high vacuum, accurate temperature control, and a PTFE discharge valve for corrosion resistance. The equipment can be matched with a vacuum pump and chiller to form a system, and is available in conventional and explosion-proof types.