High resolution steel quartz glass, PVC Ultrasonic Thickness Gauge meter UM6800 for chemical equipment, boilers $108.00 - $122.40 $108.00 - $122.40 10% off Min. order: 1 set Digital Surface Roughness Tester NDT110 The roughness of metal andnon-metallic surface meter Ra: 0.01~15.000um Rz...