COLOR: Black Place of Origin: Hebei, China Brand Name: ruilong
Black iron wire is made of low carbon steel pull a metal wire, black iron wire according to different uses, are not the same ing
Black iron wire is made of low carbon steel pull a metal wire, black iron wire according to different uses, are not the same ingredients, it contains ingredients are: iron, cobalt, nickel, copper, carbon, zinc, as well as other elements. The hot rolled metal blanks into a 5 mm thick steel bars, and then put them into a drawing device with different diameters within the pull line, and gradually narrow the drawing of the aperture plate, cooling, annealing, coating and other processing technology made from a variety of the black wire of different Black wire binding specification by industry standards are the following: 0. 50 mm diameter 25 # black wire, 0. 55 mm diameter 24 # black wire, 0. 60 mm diameter 23 # black wire and 0. 70 mm diameter 22 # black wire, etc. .
