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From March 1, 2008 will be implemented from the "hot ribbed steel bars" new standards (GB1499.2-2007), the original standard (GB1499-1998) abolished at the same time.

"People's Republic of China State Administration of Quality Supervision, Inspection and Quarantine," and "The Standardization Administration of China," jointly issued from March 1, 2008 from the implementation of the ""bars" new standards (GB1499.2-2007), the original Standard (GB1499-1998) abolished at the same time