BẠC KHUÔN GA
ɸd x ɸD x L
10x14 = 15 20 22 25 30 35 40 45 50
12x17 = 15 20 22 25 30 35 40 45 50
14x19 = 15 20 22 25 30 35 40 45 50
16x22 = 15 20 22 25 30 35 40 45 50
18x23 = 15 20 22 25 30 35 40 45 50
20x25 = 15 20 22 25 30 35 40 45 50
25x32 = 15 20 22 25 30 35 40 45 50