发布时间:2025-01-20 11:55:37
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.
我想开个烧烤店但是店铺里有跟柱子店铺左侧有个洗车房在风水学来说有什么冲突吗请问
2025-01-20 11:55:37 2025-01-20 11:55:37 2025-01-20 11:55:37 2025-01-20 11:55:37 2025-01-20 11:55:37 2025-01-20 11:55:37 2025-01-20 11:55:37 2025-01-20 11:55:37 2025-01-20 11:55:37 2025-01-20 11:55:37 2025-01-20 11:55:37 2025-01-20 11:55:37 2025-01-20 11:55:37 2025-01-20 11:55:37