Sand Blating Line for the Inner Wall of Oil Drill Pipe 1 The device is mainly used for the oil industry, such as oil drill pipe, pipeline, water pipes andgas pipeline processing. 2 It can work all day without being affected by the outside world. 3 Dust emissions in line with national environmental standards. 4 Auto-complete abrasive recycling sorting.The working efficency can be highly approved. 5 The dust emissions in line with national standard.