Hardness Converter APP DownloadDecember 12, 2016"Hardness Converter" cellphone application released officially-Revolution of hardness conversion table-Shenyang Tianxing Testing Instruments Co., Ltd. Are you still using paper hardness conversion tab...view
After-sale Service Instruction ManualDecember 12, 20161. Maintenance(1) StandardA. Inaccurate or incapable testing caused by instruments�� quality problem, we promise to repair for free in one year. B. If there is error of the tester within one year afte...view