... .7-3.5mm 3)length:5-150cm 4)Binding/Tir Wire 5)ISO9000:2000 1.Material:High quality low carbon steel ... wire.2.Assortment:Black Iron Wire , Black Annealed Iron Wire,Bright Wire ,Black annealed wire.3.Packing:25kgs,50kgs,100kgs ... ,coated with anticorrosive oil ,hard to rust.7.Cut iron wire and u type wire are mostly used as binding ...