As one of the largest manufacturers of Optical Measuring Instruments in China, we is specialized in research and developing, manufacturing and marketing Fine Optical Instruments as below: -Profile projector -Tool-maker&＃039;s microscope -Length measuring machine(ULM Machine) -Video Measuring Microscope -Abbe refractometer --Linear scale(linear encoder) and digital readout(DRO) Others products, such as optical inclinometer steeloscope and cutter tester and other metrology instruments. We have passed ISO9001 certificate, CE certificate and EMC certificate. Our products is also enjoying promising markets in more than 35 countries or regions around the world, if you are interested in cooperating with us, please feel free to contact with us. Thanks!</p>