There are two kinds of steel commonly used classification methods: First, the geometry of the classification, according to the cross-sectional shape of the ribs and rib spacing or classify different type, such as the British Standard (BS4449), the rebar into type Ⅰ, Ⅱ type. This classification performance of the main reaction clenched rebar. Second, the performance classification (class) 7mm steel, such as China's current implementation of the standard 7mm steel procurement, rebar (G B1499.2-2007) wire for the 1499.1-2008), press the intensity level (yield point / tensile strength) will be divided into three grades of rebar. Steel specification: Cutting steel joints ways: using lashing joints, tie bars welding, single (or double) lap welded joints is appropriate mechanical cutter cutting, when a small amount or do not have the mechanical machining cutting conditions can choose other way cutting. Using electroslag welding joints 7mm steel manufacturer, should not be used cutting machine cutting, sawing or grinding wheel should be used welding cutting. Cold extrusion mechanical connection and threaded ends should be used to connect steel wheel cutting saw or hacksaw piece, not using electric welding cutting. 7mm steel plant | Dingding cold-rolled (certified) | Jiangxi 7mm steel provided by Ding Ding Industrial Co., Ltd., Henan Province. Ding Ding Industrial Co., Ltd., Henan Province (www.hnddsy.com) is Anyang, other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In cold-Ding Ding leadership with the staff warmly welcome all inquiries negotiations to create a better future for cold-Ding Ding.