Rebar import and export: Import rebar cross-rib geometry of the main square of the ordinary or common rhombus screw thread. Cross rib geometry domestic rebar mainly spiral, herringbone, crescent three. Ordering principle of rebar is generally required to meet the engineering requirements on the basis of performance clenched 8mm steel manufacturing plant, with mechanical process performance or mechanical strength index based. Appearance quality rebar: 1. surface quality. Makes provision about the standard of surface quality of steel rebar spot 8mm request ends should cut too flat, the surface may not have cracks, scars and folds, may not exist on the use of harmful defects. 2. Dimensions deviation allowable value. And steel rebar bending geometry requirements are specified in the relevant standard. 8mm rebar spot, Shandong 8mm steel, cold-rolled by Ding Ding Ding Ding Industrial Co., Ltd., Henan Province. 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!