1.black iron wire 2.high quality 3.huahaiyuan iron wire 4.ISO9001:2000 5 metal wire Hard drawn wirewire gauge sizeSWG(mm)BWG(mm ... .890.90210.810.8130.80220.710.7110.70Tensile strength500-980N/Coil weight25kg,50kg,100kg,200kg,packingWrapped with PE film inside,outside ... the most popular sizes for saleCoil weight25kg,50kg,100kgPacking:in coil, by spool, or can be cut into sizes for binding/bundle