| 摘要 |
<p>This is for application of cement-holding pasty compounds to buildings, with minimal manual effort. The diffusor, of plastic-elastic material, at the end of the compressed air duct has an internal double-cone-shaped passage coaxially encompassing the spray nozzle, and axially adjustable relative to it for movement closer or further away. The nozzle may have a conical exterior with helical grooves. Fine pulverisation and even spreading are readily attainable.</p> |
