How much cold rolled straight 9mm steel, cold-Ding Ding, 9mm straight cold-rolled steel by Ding Ding Industrial Co., Ltd., Henan Province. Ding Ding Industrial Co., Ltd., Henan Province (www.hnddsy.com) is a professional enterprise, "cold-rolled ribbed steel CRB550", the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Liu. Reinforcement of inspection and acceptance carried out by the supplier's quality supervision departments. The right to examine the demand side. Inspection and acceptance were reinforced by the provisions of GB / T17505 in. Reinforcement shall be inspected and approved acceptance 9mm cold-rolled strip steel straight manufacturers, each batch should be the same brand, same shape, same size, same steel production process and the composition of the same delivery status, each consisting of not more than 60t. Reinforcement reinspection shall comply with the decision rules GB / T17505 in. How much money in the construction industry 9mm cold-rolled strip steel straight, level Ⅱ Ⅲ grade steel and reinforced in the past (the old standard) is called, the new standard in Class Ⅱ renamed HRB335 grade steel reinforcement, Ⅲ grade steel renamed HRB400 steel. Both reinforced the same point is: all belong to ordinary low-alloy hot-rolled steel; all belong ribbed steel (which is usually said rebar); can be used in reinforced concrete structural engineering.