Our firm aims to operating faithfully, serving to all of our shoppers , and working in new technology and new machine regularly for What Is A Spectrometer, Basics Of Raman Spectroscopy, Spectroscopy Spectrometry, Optical Absorption Spectroscopy,Miniature Spectrometer. Since establishment within the early 1990s, now we have arrange our sale network in USA, Germany, Asia, and several Middle Eastern countries. We intention to get a top class supplier for worldwide OEM and aftermarket! The product will supply to all over the world, such as Europe, America, Australia,Angola, Cannes,South Korea, Costa rica.We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information if you have any questions. We are glad to work for every client.