Welded into bonding and welding two forms. Steel flash butt welding (welding allows the use of two high quality 5.5mm cold-rolled steel reinforced contact, through low voltage high current to be reinforced to be heated to a certain temperature to soften axial compression upset form For flash butt welded joint reinforcement process commonly used continuous flash welding, preheat flash welding and flash - preheat -. flash welding on steel grade Ⅳ sometimes also energized after welding steel heat treatment is now widely applied to any 5.5mm cold rolled steel construction on the shelf, and achieved better evidence 5.5mm cold-rolled steel spot for human progress, but also on the quality of steel is now part of the investigation by the minimum reinforcement ratio reinforcement, press ( Equal Area) reinforced the principle of substitution. reinforced many types, usually by chemical composition, production process, rolling shape, supply form, diameter, as well as use in the structure of the classification. 5.5mm cold rolled steel shelf, 5.5mm cold-rolled steel, cold rolled by Ding Ding Ding Ding Industrial Co., Ltd., Henan Province, Henan Province Ding Ding Industrial Co., Ltd. (www.hnddsy.com) strong, credible, Anyang in other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Dingding cold rolling and you hand into the brilliant, for a better future!