JB/T9102.5-2013密封圈和刮油圈用拉伸弹簧材料一般应选用C级碳素弹簧钢丝，弹簧材料的截面直径大于等于0.5mm，拉伸弹簧表面进行氧化处理，拉伸弹簧的旋向规定为右旋。

5000N密封圈拉簧试验机；3000N刮油圈拉簧试验机；2000N右旋拉簧试验；500N冷卷拉簧试验；拉簧负荷测试；拉簧长度测试；50kN平面弹簧试验机；30kN填料弹簧试验机；HRJ Tests；10kN压缩机弹簧试验测试；JB/T9102.5-2013；往复活塞压缩机；金属平面填料测试；密封圈和刮油圈用拉伸弹簧；GB/T1239.1；GB/T1239.2；GB/T1239.3；冷卷圆柱螺旋弹簧技术条件；拉伸弹簧刚度测试；HRJ Tests；拉伸弹簧变形量测试；GB/T1805；GB/T4357；JIS G3521；GB/T16947；GB/T18983；ISO/FDIS8458-3；GB/T21652；JB/T7944；YB/T5311；YS/T571；20kN液压弹簧试验机；10kN圆柱弹簧试验机；200N拉伸弹簧试验机；HRJ弹簧试验机；10N～300kN弹簧试验机；

8kN拉伸弹簧试验机；100kN拉伸弹簧高速试验机；HRJ弹簧试验机；

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济南恒瑞金试验机有限公司；弹簧检测仪器制造商；山东省力值硬度计量委员

（试验机服务中心）（试验机配件供应中心）（特殊夹具定制中心）