Shuo steel doors and windows and aluminum doors and windows have any advantages and disadvantages
There are no advantages and appearance of the aluminum alloy, of course, the rural stalls which are very low prices of aluminum alloy when not to mention, the price of steel I do not understand, but the aluminum alloy is: Material 1.4mm, glass 6mm steel, then push and pull will go to 250 to 280, then open the words will go to more than 300, the price is basically the cost of regular processing production
This is to consider the geographical
If it is the difference between the four seasons, rain, big sun sun!
That aluminum plastic aging is faster
But the aluminum-plastic pulley sliding light and cheap
Aluminum alloy words
The age is also aging and aging
Slide the case when the shell
