发布时间:2025-01-31 06:48:18
1。考虑使用,就全部面积做隔层,上面一层功能设计上考虑对层高要求小的功能。
2。如果考虑美观兼顾实用,可以局部隔层。
3。如果考虑通透,可以考虑透明隔层材料或者局部镂空设计
加工npt1478螺纹1474螺纹3474螺纹时底孔分别钻多大
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