国外标准
zk200512345 2014/05/21
Standard Test Method for Tensile Strain-Hardening Exponents (n -Values) of Metallic Sheet Materials ok
zk200512345
第1楼2014/05/21
Standard Test Method for Tensile Strain-Hardening Exponents (n -Values) of Metallic Sheet Materialsok
第2楼2014/05/21
Standard Test Method for Plastic Strain Ratio r for Sheet Metal ok
品牌合作伙伴
执行举报