Square Tube
NO	Specification
1	15×15×0.6-2mm
2	18×18×0.6-2mm
3	19×19×0.6-2mm
4	20×20×0.6-2mm
5	24×24×0.6-2mm
6	25×25×0.6-3mm
7	30×30×0.7-3mm
8	40×40×0.7-4mm
9	50×50×1.0-4.5mm
10	60×60×1.0-5mm
11	70×70×2.5-5mm
12	80×80×1.0-6mm
13	100×100×1.2-8mm
14	120×120×4-8mm
15	130×130×4-10mm
16	135×135×4-10mm
17	140×140×4-10mm
18	150×150×4-10mm
19	160×160×4-10mm
20	180×180×4-12mm
21	200×200×4-14mm
22	220×220×5-14mm
23	250×250×5-14mm
24	300×300×6-14mm
25	350×350×8-14mm
26	400×400×8-14mm