发布时间:2025-01-21 21:36:59
GCr15 和 GCr15SiMn都是滚动轴承钢。
GCr15是表示平均含铬量为1.5%的滚动轴承钢。
GCr15SiMn是表示除含铬1.5%外,还含有含量小于1.5%的硅、锰元素的滚动轴承钢。
GCr15一般用于直径25~50mm的滚珠。
GCr15SiMn一般用于直径50~100mm的滚珠,和直径大于22mm的滚柱。
厕所蹲坑破了如图漏水漏到楼下了用玻璃胶水泥之类的填补上会有用吗
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