M: Is the main plant or the non-host factory.<br>A: Well, let's say you're a regional manager, you're in charge of four stores, and these four stores are together at the same time.
M: Is it a main engine factory or a non main engine factory.<br>A: It's like this. For example, if you are a regional manager, you are in charge of four stores, which are put together at the same time.