The end of spray tube is arranged with a clean opening, therefore, when the nozzle is blocked by slurry, user can use iron bar to clean the blocked nozzle tube from the clean opening.
喷管末端设有清理口，当料浆堵塞喷嘴时，可通过清理口用铁条将堵塞的喷管疏通。
2
And discusses a machining way when the hole is thin and long, then take the bus-bar of the hole as the constant acceleration curve spray nozzle part.