发布时间:2025-02-01 10:41:43
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.
我家住一楼,很潮。现重新装修:打掉地板砖至地基找平层,架空20cm、装模板、浇筑混凝土;砸掉墙皮做防水。
2025-02-01 10:41:43凑够了钱付了首付没钱装修买家具怎么办别说装的怎么样简装都困难大家帮我支支招
2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43 2025-02-01 10:41:43