Cold-rolled ribbed steel bars and application performance results are as follows: China's national standard "rolled ribbed" GB13788─2000 in LL550 grade mechanical properties are developed with reference to international standards and standard-setting steel wire rod, rebar tensile strength 550Mpa rod manufacturers, according to the German standardization elongation steel rod company, controlled from the two indicators of quality steel wire rod, cold-rolled ribbed steel standard of not lower than the international standard. Cold-rolled ribbed steel Advantages: Good rolled ribbed Bond properties between steel and concrete. So for members, essentially eliminate the anchorage zone cracking components, wire slippage and damage the phenomenon, and increase the carrying capacity and anti-cracking ability of member ends; reinforced concrete structure, the crack width than light round reinforced, even smaller than hot-rolled rebar. Shandong steel wire rod steel wire rod manufacturers _ _ Ding Ding Ding Ding Industrial Co., Ltd., Henan Province by. Ding Ding Industrial Co., Ltd., Henan Province (www.hnddsy.com) strong, credible, in other industries in Henan accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Dingding Industrial and you hand into the brilliant, for a better future!