Cylindrical helical spring seriate sizes
全国弹簧标准化技术委员会(SAC/TC 235)
本标准规定了一般用途圆截面圆柱螺旋弹簧材料直径、弹簧中径、有效圈数（压缩、拉伸弹簧）以及自由高度（压缩弹簧）等主要尺寸系列。
本标准适用于一般用途圆柱螺旋弹簧。
This standard is the original Chinese electronic standard.
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