ASTM A 228/A228M : 2017-01現行
SPECIFICATION FOR STEEL WIRE, MUSIC SPRING QUALITY
出版：American Society for Testing and Materials
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基本信息
標準編號： ASTM A 228/A228M : 2017-01
標準類別：Redline
出版單位：American Society for Testing and Materials
標準頁數：0
標準簡介
CONTAINED IN VOL. 01.03, 2017 Defines two types of round, colddrawn steel music spring quality wire, uniform in mechanical properties, intended especially for the manufacture of springs subject to high stresses or requiring good fatigue properties.
