metal furniture fittings1. FINISH: ZINC PLATED, GALVANIZED, HOT DIPPED GALVANIZED, GOLD PLATED, CHROME PLATED, NICKLE PLATED, POWDER COATING, ANODIZING... ETC.2. MATERIAL: STEEL, ALUMINUM, STAINLESS STEEL, BRASS AND COPPER, ...ETC.3. METAL FRACTION: PUNCHING, CASTING, DRILLING, DIE-CASTING, CNC...