1) Materials: carbon steel, stainless steel, alloy steel 2) Processes: die-forging, various loose hammers 3)size: 13*5.5 1. supreme quality 2.competitive price 3. prompt delivery Forging Wheels hub:1) Materials: carbon steel, stainless steel, alloy steel2) Processes: die-forging, various loose hammers3) Manufacturing equipment: standing machine tool, machine tools, standing miller, planomiller, ...