In order to the African customers can use Sinowon vision measuring machines well, the engineer Mr. Sam Xiao of Sinowon has been dispatched to Tanzania to install and train the operator in Jan, 2019. Mr. Xiao has flew about 20-hour to reach the customer’s palace by air, then start to work immediately even he is so tired, the accuracy is under 2um after Xiao’s calibration, the customers are very happy for the excellent quality and professional and friendly service.