Dear Pornchai
It's been a long time to talk with you :)
If you contact goverment officer, our new brand could be more reasonable because the raw material of 3800FU is much more expensive even that is lower quality..
I recommend you Defender or T35 (If you'd prefer Full HD product) that both have screen..
We have reference with Defender and T35 in other nation.. Please recheck it from our website www.jaewoncnc.co.kr
Pornchai,
We can be able to cover 2years warranty but the price will be a little different.. And i will try to discount Constant power(Iprolinkers) but that quite difficult.. I am really guarantee you the quality of Iprolinkers which is very stable.. You can compare with other product also..
Looking forward hearing from you soon
I am attached our company introduction but i updated that few months ago..
Sincerely
DJ