如何判断某型号的电缆与某套管的型号大小是否合适,是从外径大小来判断,还是从截面积来看
2025-01-20 06:06:44 2025-01-20 06:06:44我想换象印电热水瓶内胆不要涂层的要304不锈钢内胆在哪里换呢
2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44 2025-01-20 06:06:44