| 摘要 |
A nozzle 22 has an external peripheral projection in the form of an annual wall 24, such as to stop the nozzle 22 itself contacting any solid surface against which the nozzle may be pressed, or from accumulating any backwash of fluid passing out of the nozzle 22. The nozzle may be used as part of an apparatus in which heated paint is poured via the nozzle into a mould into which it sets, form a solid brick of solidified paint. |
