light weight,good stability and anti-corrosion,good plasticity,small transfiguration,non-polluting,innocuous,insulating. Aluminium alloy door and window which is the most initial aluminium profile.It has the character of high intenstity,light weight,good stability and anti-corrosion,good plasticity,small transfiguration,non-polluting,innocuous,insulating,strong fire-retardant,long lifetime(up to- ...