YUANGUAN PRECISION MEASUREMENT INSTRUMENT CO., LTD.- its previous is based on Yonggang Photoelectric Co.,Ltd ,which is Taiwan-funded enterprises established in Dongguan in 2000. It's a company specializing in manufacturing, selling video Measurement Machines, Corodinate Measuring machines, projectors, Gauge, Hardness, Pushing Tension Teter, Microscopes and other measuring instruments to the various enterprises.