论文部分内容阅读
说明 冷拔中强钢丝母材——B20MnSi热轧盘条,经我所及全国七个科研单位和学院的试验研究,证明B20MnSi热轧盘条满足预定的技术指标,于1985年10月通过鉴定,现已正式投产供货。在我国的“冷拔中强钢丝
Description of the cold-drawn medium-strength steel wire base material—B20MnSi hot-rolled wire rods. After research conducted by our institute and seven scientific research institutions and colleges in China, B20MnSi hot-rolled wire rods meet the predetermined technical specifications and passed the appraisal in October 1985. , is now officially put into production. In China’s "cold drawing medium strong steel wire