Pneumatic Vacuum Cleaner, Stainless Steel Industrial Vacuum Cleaner, 30L Wet/Dry Vacuum Cleaner, for Suck Liquid, Solid, Solid Liquid Mixture, Air Compressor Needed. Capacity: 30L. It does not require electric devices such as power sources and motors, so that it is more durable, and the service life of the machine is longer than that of an electric vacuum cleaner.
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