| 摘要 |
Installation for cleaning surfaces, provided with a blasting device (1) by means of which blasting material supplied to the blasting device by means of pressurized air can be sprayed, whereby the blasting device (1) comprises blasting means (13) surrounded by a casing (2) to which a line (8) is connected, said line (8) being connected, with the interposition of a filtering device (9), to a device (13) generating a subatmospheric pressure.
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