发布时间:2025-02-10 09:57:04
M30是指螺栓的公称直径是30毫米;
C级是精度等级,分为A\B\C三级,C级是最低的一级;
机械性能
6.8级的性能为:6代表6*100=600MPa,指螺栓的抗拉强度为400MPa,.8为屈强比值为0.8,公称屈服强度为600×0.8=480MPa
502胶水把手黏住了怎么办白醋去除502胶水小妙方502胶水弄衣服上怎么除
2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04好喜欢色彩明艳的装修风格但感觉很rlm难把握这种到底该怎么装修啊
2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04 2025-02-10 09:57:04