لوله و پروفیل هفت الماس

Haft Almas (Seven Diamonds) Industries is a Qazvin-based steel producer, founded in 1996 and operational since 2003, that manufactures galvanized steel sheet along with cold-rolled, pickled, tin-coated, and color-coated sheet. It is Iran's second-largest galvanized-sheet producer, exporting roughly 20-40% of its output.