Thank you for your responsibility.
Any, My boss cannot accept your proposal about steel frame.
Khun prapart insisted on using aluminium frame and proper position of screw holes.
He would like to send all of them back to your side for solving this problem.
You should absorb all expenses.
In thailand nobody can weld steel and aluminium.
So, we cannot repair ourselves.
our customers are afraid of rust on metal.
K.prapart need all the same same as our sample.