Ok,Let us say Owin laser. At first,I listed some requests to them before I buy OWF-3015 machine.When machine is ready,they show me photos one by one.
And cutting video looks also nice.I like their design and color for my machine.
The engineer taught me how to use the machine,how to set parameters.

Oh,I nearly forget to say that Owin laser supplied me with some wearing parts for free. I indeed did not ask them to give me. It is a surprise.Now the machine is used well. Expect to cooperate with Owin laser again.