فروش کارخانه ای astm a479 با تکنولوژی تولید عالی
ASTM A479_A479M-16 … ASTM A479_A479M-16 . 6. Grain Size for Austenitic Grades. 6.1 All austenitic grades shall be tested for average grain size by Test Methods E112. 6.2 The H grades shall conform to an average grain size as follows: Designation: A479/A479M − …