Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work {the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g.} from an outlet device in contact or almost in contact, with the work {characterised by flow controlling means, e.g. valves, located proximate the outlet the valve being a gate valve or a sliding valve}
Currently, there are no issues on this topic.