1. what's the annual output of the plant you want to achieve, for example,10000 SQM or 2000SQM windows and doors.
2. What kind of doors and windows you want to produce? Sliding or Casement or both?
3. Where do you purchase the aluminum profiles(sections), and what's the general dimension of your profiles, for example length, width, height, etc..
4. What's the minimum and maximum thickness of your aluminum profiles?
5. What kind of operation of the machines you need, automation or semi-automatic, or manual type? This should be base on the technique of your workers and the level of labor costs.
