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Standard
| JB/T 4207-2020 Hooks for manually operated lifting equipment and latch (English Version) |
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Detail of JB/T 4207-2020
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Introduction of JB/T 4207-2020
本标准规定了手动起重设备用锻造吊钩的级别、极限工作载荷、基本尺寸、闭锁装置、一般特性和试验方法。
本标准适用于极限工作载荷25t以下手动起重设备用的模锻吊钩。
Contents of JB/T 4207-2020