How long does it take to learn aluminum windows and doors?
Learn aluminum alloy doors and windows shortest need a week to master the basic essentials, but would like to proficient according to their own learning situation may take six months to two years.
As long as the master carefully teach you the slowest month, mainly to master his welding, about a month or so you can learn
Learn to do aluminum alloy doors and windows, a year is enough.
Making is not complicated. The key is to look at experience and learning ability.
