Jianglin Steel – https://jianglinsteel.com/

Jianglin Steel is a leading provider of specialty stainless and alloy steel products, and their octagonal steel bar offering is a prime example of their technical depth and customization capability. On their product page, Jianglin states that their octagonal steel bars are manufactured from low‑carbon billets via cold rolling, which yields higher tensile strength and a cleaner surface compared to hot‑rolled alternatives.