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Wangxia Spring‑Garage Door Torsion Springs Showcase
Garage door torsion springs manufactured by Wangxia Spring Co., Ltd. are finished products with precise grinding on both ends. Made of high‑quality 82B spring steel (ASTM‑A229), our torsion springs have passed shot‑peening and pre‑press treatment for longer service life. Surface options: oil‑tempered black finish, galvanized coating. Custom sizes on wire gauge, inside diameter, length and torque are available.
车库门,Garage Door Torsion Springs
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