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...

Yuelu district,Changfang Time

Changsha Samy Instrument & Equipment Co., Ltd. is a professional high-tech company, engaged in the research & development, manufacturing and marketing of laboratory instruments. We hav...