4 5 x 200 July 8, 2019 16 32 64 128 4 5 x 2000 4 5 x 20000 4 5 x 3 4 x 200 200 4 5 x )= 80 4 2000 x 5 4003 Rundstab 4 5 x 2000 mm 200 x 4 5 bằng bao nhiêu 4 5 x 20 200 x 5
