
En 818 Short Link Chain For Lifting Purposes - Safety. Part 2: Medium Tolerance Chain For Chain Slings - Grade 8 (pren 818-2)
出版:British Standards Institution

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En 818 Short Link Chain For Lifting Purposes - Safety. Part 2: Medium Tolerance Chain For Chain Slings - Grade 8 (pren 818-2)
出版:British Standards Institution
专家解读视频