Tianxin district

Changsha Qlong Instruments Co. Ltd . is an excellent supplier specializing in trading and manufacturing . Our main products is spectrophotometers , hardness tester , muffle furnace , and some testing...

Factory Add.: Rd.25, Qingshan Industrial Park, Yuelu District, Changsha, Hunan, China. Office Add.: 23 Floor, Shanghe International Business Centre, Yuhua District, Changsha, Hunan, China

Our company is located in Changsha City,Hunan province,China.We are a professional manufacturer of researching and producing Nano carbon removing machine/Oxy-hydrogen generator/HHO Carbon Cleaner and ...