... etc.to gain bright surface. Sandblast EquipmentUsed to clean the surface of steel pipe, tube, sheet,plate,etc. to gain bright ... design is available. For details of this machine, it is available at your request.Special design based on the requirements of customer is available. ... in various Voltage and Hertz worldwide . The test range is 0 - 600V, 45 - 500HZ. Passed the test, it can ensure our machine ...