Astm A 121 – 99 pdf free download
Standard Specification for Metallic-Coated Carbon Steel Barbed Wire1 This standard is issued under the fixed designation A 121; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) … Read more