Seven Diamonds Industries is a manufacturer and exporter of:Cold Rolled Coils & Sheets(thickness 0.30 mm - 2.00 mm)Hot Dipped Galvanized Coils & Sheets ( thickness 0.25 mm - 2.00 mm)Pre-painted Galvanized Coils & Sheets (thickness 0.3 mm - 1.00 mm)ERW Carbon Steel Cold & Galvanized Pipes & Tubes (Diameter 13-60 mm)