Curvature per meter cold-rolled ribbed steel bending straight bars no more than 4mm, the total curvature is not more than 0.4% of full-length steel. Weight cold-rolled ribbed steel coil steel weight not less than 100kg. Each dish served cold rolled steel components should be a straight rebar, CRB650 above grade steel and shall have welded joints. Straight bars by the same brand, same size, same length of cold-rolled into a bundle delivery straight rebar plant, heavy bundle negotiated by both parties. Cold-rolled ribbed steel Measure: horizontal rib height is measured by measuring the same section height of each column is the mean value of transverse ribs; transverse rib spacing using the method to measure the average distance between cold-rolled straight rebar, which take the same column measured transverse ribs The first and second 11 lateral rib distance from the center, divided by the average value of 10 is the lateral rib spacing. Size measurement accuracy is accurate to 0.02mm. When measuring steel weight deviation, sample length should not be less than 500mm. Length measurements accurate to 1mm, weight measurement should be accurate to 1 g. Cold rolled straight twisted steel | Henan cold-rolled strip steel straight | 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!