Duplex Nail: 1.length:2-1/4''~4-1/4'' 2.diameter:6GA~11.5GA 3.model:6D,8D,10D,12D,16D,20D,30D 4.material:Q195\Q235 Duplex Nail:1.length:2-1/4''~4-1/4''2.diameter:6GA~11.5GA3.model:6D,8D,10D,12D,16D,20D,30D4.material:Q195\Q2355.packing:as per customer's requirement