Sampling and environmental requirements of cold-rolled ribbed steel bar: cold rolled ribbed steel bars: Each batch should be the same brand, same shape, the same production process and the same delivery status of cold-rolled steel components 7mm straight rebar prices, each batch is not greater than 60t. Tensile testing of each batch tested by disc, each disc random interception of a specimen; bending and repeated bending test each batch of random two random intercepts prepare a specimen. Cold-rolled ribbed steel bars: hot rods after cold rolling on its surface with three sides evenly distributed along the length of the cross rib or two faces of steel. Nominal diameter: the equivalent cross-sectional area equal plain bars nominal diameter. The relative rib area projection: horizontal ribs in the vertical plane and the bar axis projection than the nominal perimeter and area of ??the cross product of the rib spacing. Cross intercostal space: the reinforced peripheral coil portions in a discontinuous transverse rib perpendicular to the bar axis plane projection of the chord length. 7mm cold rolled straight rebar prices, Jiangsu cold rolled straight rebar, cold-Ding Ding Ding Ding Industrial Co., Ltd., Henan Province by. Ding Ding Industrial Co., Ltd., Henan Province (www.hnddsy.com) strong, credible, and other industries in other Anyang 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!