The model and size of stainless steel square tubes are as follows:
Dimensions of universal square pipes: 10 * 10, 12 * 12, 15 * 15, 19 * 19, 22 * 22, 25 * 25, 30 * 30, 35 * 35, 38 * 38, 40 * 40, 50 * 50, 60 * 60, 80 * 80,100 * 100,120 * 120,150 * 150,200 * 200 (unit: mm).
The non-standard specifications that need to be customized are: 6 * 6, 8 * 8, 16 * 16, 17 * 17, 18 * 18, 20 * 20, 23 * 23, 24 * 24, 28 * 28, 32 * 32, 45 * 45, 70 * 70, 75 * 75, 90 * 90 (unit: mm).