RenLux Crystal start it's business from March of 1995, we make the crystals which can still use our intrinsical equipment and quartz monitor crystals, and those monitor crystals is our most important part now, we are sure that the QCM sensor crystals will be more and more popular, what makes it better is the case that there are no factory in China want to make QCM crystals when we start it, and our competitors in developed countries will stop their production line of QCM crystals sooner or later, because most of the manufacturing machines are scrapped because the demand of this crystal can't maintain the cost of the machine, so most of the work must be finished by human being, but the hand work is expensive in developed countries. Meanwhile, our engineers already knew the technical well, we have do OEM manufacture for some customer in USA and Europe for many years, this helps us to improve our technical and management a lot, and we have work with our customer in China and all over the world, we know our customer and our QCM crystals better and better, so we are growing and growing every day, there are more and more univeristy and research center use our sensor, also some famous sensor maker in USA and Europe, we help each other to improve and growing. Our QCM sensor crystals are used on all popular EQCM and QCM-D workstation, such as Q-sense(E1/E4), SRS(QCM200), SII(QCM934), INFICON(RQCM), Autolab, CHI, Gamry, and so on. We will try our best to improve our quartz crystal microbalance sensors, we will improve our service to be better and better, we supply free design for special demands, we make special crystals for our customer, we supply free samples, we are sure that our customers will support us. We have passed ISO9001/14001and RoHS, we do 100% test to our products to make sure our products are 100% OK when it comes to our customer.