How to replace doors of old dirty kitchen. did you replace it enjoyly?

Today, I'm trying to replace old door to a new door regarding to the kitchen.
Our manufacture exist in Seki City, Gifu Prefecture, Japan.
The City is famous for making knife and cutrary.
So there are a lot of manufacture and factory all around in my city.
If you would like to go to this place, please come to our factory.
There are a lot of versatile machines and products.