فروش عمده astm a564 hot
فروش عمده astm a564 hot; ASTM A564/A564M-13e1. Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes1. This standard is issued under the fixed designation A564/A564M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision ...