Steel nails, cement nails, wall nails, round nails, iron nails, brick nails, concrete nails, photo frame nails, decoration hooks, 4cm

▸ Material type: high-carbon steel cement nail
▸ Nail body structure: round head straight rod type
▸ Size: diameter 3.2mm× length 40mm
▸ Application scenario: concrete/brick wall/photo frame installation
▸ Surface treatment: anti-rust phosphate coating