26/06/2026
Frustrated by square tube cracking while bending & welding?⚙️
Our factory supplies full-size black & bright annealed square & rectangular hollow sections.
Full annealing eliminates internal cold-working stress, high ductility, no crack after forming, bending, welding or punching. Q195/Q235 raw material, precise dimension tolerance.
Annealed square tubes widely used for metal furniture frames, auto chassis parts, fitness equipment, agricultural machinery brackets, storage racks & light steel structures.
Support full 20GP/40HQ container bulk order, mixed loading with round pipe, steel plate to cut ocean freight cost. Custom side width, wall thickness, fixed length & black/bright surface available.
👉 DM your size & tonnage, get factory wholesale price right away!