... and main produce galvanized iron wire, all kinds of iron nails , eg,common nails,wire nails,round nails,umbrella roofing nails,coil nails,concrete nails in china. we have been ... lower price and higher quality(have passed ISO9001).Common Round Nails' Specifications:Material:Q235 Carbon SteelLength: 3/8 to 7 (10mm ...