| 摘要 |
A door apparatus for a turning center may comprise a main door unit and an auxiliary door unit. The main door unit can open and close a main entrance of a chamber in which a turning center is arranged. The main door unit may have an auxiliary entrance which a sample separated from a material entering the main entrance enters. The auxiliary door unit can open and close the auxiliary entrance of the main door unit. Therefore, a leakage of cutting oil and scattering of a ship can be restricted. Moreover, an accident of a worker can be prevented. |
