①,Washers shall be made from material meeting the chemical composition requirements of the following standards: a、up to and including 3/4 in. carbon steel -SAE J403 1055-1065(UNS G10550-G10650); b、7/8 in. and above boron steel -SAE J411 10B55-10B65 |
①,Washers shall be made from material meeting the chemical composition requirements of the following standards: a、up to and including 3/4 in. carbon steel -SAE J403 1055-1065(UNS G10550-G10650); b、7/8 in. and above boron steel -SAE J411 10B55-10B65 |