What does 4x4 alyuminiy qatlamli metall mean?
4'x 4' also called 48“x 48”, because this is an imperial measure. Yagona tirnoq ' oyoqqa ishora qiladi. 4' and A' respectively indicate 4 oyoq va 4 oyoq, 1 oyoq = 304,8 mm, 4'=1219 mm
4'x4' alyuminiy qatlamli metall indicates the width of alyuminiy plastinka plitasi × length = 4 oyoq × 4 foot = 1219mm × 1219mm.