Containing indentations, ribs, grooves or other

72.13 - Bars and rods, hot-rolled, in irregularly wound coils, of iron or non-alloy steel. 72 13.10 - Containing indentations, ribs, grooves or other deformations produced during the rolling process 7213.20 - Other, of free-cutting steel - Other : Of circular cross-section measuring less than 14 mm in diameter 7213.91 -- 72 13.99 - - Other Bars and rods, hot-rolled, in irregularly wound coils, are defined in Note 1 (1) to this Chapter. These products (also known as but they are also used for other the nut and bolt industry, in the co rods. The heading also includes bars and rods for concrete reinforcement; such products are rolled with protuberances or indentations (e.g., teeth, grooves, flanges , provrded their cross-sectional shape corresponds to one of the eometrical s es defined in hapter Note 1 (1). These protuberances or indentations must e designed so ely to improve the bond with concrete, etc. 7, r1 The heading does not cover bars axxd rods of this kind, straightened and cut to length (heading 72.14). 72.14- Other bars and rods of iron or non-alloy steel, not further worked than forged, hot-rolled, hot-drawn or hot-extruded, but including those twisted after rolling. 7214.10 - Forged 7214.20 - Containing indentations, ribs, grooves or other deformations produced during the rolling process or twisted after rolling - Other, of free-cutting steel - Other : 7214.91 - - Of rectangular (other than square) cross-section 7214.99 - - Other 7214.30 Other bars and rods are defined in Note 1 (m) to this Chapter. Bars and rods of this heading are usually produced by hot-rolling or forging blooms, billets, puddled bars or ilings; they are also sometimes produced by hot-drawing or hot-extrusion. In general, bars an rods can be distinguished from other rolled, forged or drawn products slnce : (1) They present a more accurate and finished a pearance than puddled bars (heading 72.06), blooms, billets, rounds, slabs and sheet bars &eading 72.07). Their cross-section is uniform and when it is square or rectangular has sharp edges. (2) They have a greater thickness relative to their width than the products of heading 72.08 or 72.11. The bars and rods of this heading are mainly delivered in straight lengths or in folded bundles. The products of this heading may have been subjected to the following surface treatments : (1) Descaling, picklin , scraping and other processes to remove the oxide scale and crust formed during the eating of metal. f (2) Rough coating intended solely to protect products Eom rust or other oxidation, to prevent slipping during transport and to facilitate handling e.g., aints containing an active anti-rust p i p e n t for example, red lead zinc powder, zinc oxi e, zinc chromate, iron oxide (iron mniurn, jewellers rouge), and non-pigmented coatings with a basis of oil, grease, wax, paraffin wax, graphite, tar or bitumen. B (3) Removal of small portions of the metal for testing purposes. The heading also covers : (1) Bars and rods which are rolled with protuberances or indentations (e.g. teeth, grooves, flanges), qrovided their general cross-sectional shape corresponds to one of the geometrica shapes defined in Cha ter Note 1 (m); these protuberances or indentations must be designed solely to improve e bond with concrete, etc. 5, (2) Bars and rods which have been individually twisted after roll in^, e. bars which are rolled with two or more longitudinal flanges, which are given a spiral f;rm by twisting (steel " twists "1; and (3) Bars and rods having a single perforation to facilitate transportation. The heading, however, excludes : (a) Products consisting of two or more rolled bars twisted together (heading 73.08). (b) Pieces cut from bars and rods with a length not exceeding the greatest cross-sectional dimension (heading 73.26).