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《钢筋冷轧扭机组》行业标准,7月23日通过专家组审定。 据不完全统计,1997年全国已有300多条生产冷轧扭钢筋,1500余万平方米的建筑采用了这一产
“Cold-rolled steel bar twisted screw” industry standard, July 23 approved by the expert group. According to incomplete statistics, more than 300 cold-rolled twisted bars have been produced in China in 1997 and more than 15 million square meters have been adopted in this project