NKP-type 2 and our factory production of have no gas supporting it associated with inner diameter spraying Ф 250-Ф 700 mm of all kinds of pipeline. It is no use gas transmission of high pressure coating to it, then after the wall along the pipe inner surface spraying rotation, mobile to complete to conduit wall paint job. NKP-type 2 spraying coatings for the shape, so strong adaptability and can spraying high viscosity most of the coating. NKP-type 2 adapt to gush inside diameter Ф 250-Ф 700 mm of all kinds of pipeline.