货运等级和密度计算器
确定正确的货运等级可以为您节省时间和金钱。我们创建了一个易于使用的计算器，帮助您选择合适的货运等级并准确规划您的货物运输。
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Item 1
确定货运等级
确定正确的货运等级对于准确的运输成本和避免意外费用至关重要。货运等级是北美（通常基于NMFC）的标准化系统，根据货物的可运输性对其进行分类。
货运分类的关键因素：
货运等级图表（常见示例）：
| 等级 | 密度范围（磅/立方英尺） | 示例物品 |
| 50 | ≥50 | 机械，砖块 |
| 55 | 35-50 | 陶瓷砖，水泥 |
| 60 | 30-35 | 汽车零件，瓶装饮料 |
| 65 | 22-30 | 汽车零件，家具 |
| 70 | 15-22 | 橱柜，铸铁炉 |
| 77.5 | 13-15 | 轮胎，床垫 |
| 85 | 12-13 | 装箱机械 |
| 92.5 | 10-12 | 电脑显示器 |
| 100 | 9-10 | 玻璃器皿，帆布 |
| 110 | 8-9 | 电视，大型电器 |
| 125 | 7-8 | 小型电器，书籍箱 |
| 150 | 6-7 | 轻型装置 |
| 175 | 5-6 | 衣物，灯罩 |
| 200 | 4-5 | 袋装货物，泡沫产品 |
| 250 | 3-4 | 乒乓球，空容器 |
| 300 | 1-3 | 救生衣，空桶 |
| 400 | ≥0.5 | 羽绒，绝缘材料 |
| 500 | ≥0 | 飞机零件，人工花卉/植物 |
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