技术专栏
普通四层板,各层间距离为多少
4***3B
330
1
<h2 style=‘margin: 0px; padding: 0px; border: 0px; font-family: 微软雅黑; box-sizing: border-box; font-weight: 500; line-height: 1.1; color: rgb(34, 34, 34); font-size: 20px; text-align: center; white-space: normal; background-color: rgb(255, 255, 255);’>普通四层板,各层间距离为多少<br/>
