FOEN 2020 aluminium extrusion tslots inogona kugadzirwa nezvinodiwa nevatengi.Maumbirwo akasiyana ealuminium tslots anogona kugadzirwa nezvikwata zvedu zvehunyanzvi uye madhipatimendi ane akasiyana aluminium zvigadzirwa zvekugadzira, michina uye zvivakwa.