发布时间:2025-02-01 10:36:43
电缆套官的型号与电缆截面相关,也与成品外径.
一般来说,电缆的截面不得大于电缆套管的内截面40%.
电缆的截面=成品外径的平方*0.7854.
电缆套官的内截面=内径的平方*0.7854.
刚开始做监控安防 就是想做一些小工程 自己也没什么关系 怎样去跑业务最有效!希望有能力的前辈
2025-02-01 10:36:43 2025-02-01 10:36:43 2025-02-01 10:36:43 2025-02-01 10:36:43 2025-02-01 10:36:43 2025-02-01 10:36:43 2025-02-01 10:36:43 2025-02-01 10:36:43 2025-02-01 10:36:43想找一些关于印铁制罐的书籍主要想了解整个制罐工艺出菲林和印铁工艺的整个流程望推荐谢谢
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