Heavy‑Duty High‑Carbon Steel Custom Extension Springs, OEM Stamped Hardware High‑Load Tension Spring Fittings
Processing Technology:
Heavy gauge spring coiling, reinforced hook stamping, quenching heat‑treatment, deburring, black‑oxide finishing, zinc‑plating, powder‑coating
Sample Lead Time:
3‑7 Working Days
Production Lead Time:
25‑30 Working Days
Mass Production Lead Time:
25‑30 Working Days
Drawing Format:
PDF, CAD, DWG, STEP, IGES, PNG, Hand‑drawn Sketch
Place of Origin:
Dongguan, Guangdong, China
Color:
Black‑oxide black, zinc‑plated silver, multi‑colour powder coating, customized finish
Packing:
Anti‑static PE inner bag, export carton, fumigation‑free wooden pallet for bulk sea shipment
Delivery time:
3‑7‑day sample‑making, 25‑30‑day bulk‑order delivery
Materials:
High‑tension high‑carbon steel spring wire