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| MT/T 664-1997 Drill rod of raise boring machine for coal mine (English Version) |
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Detail of MT/T 664-1997
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Introduction of MT/T 664-1997
本标准规定了煤矿用反井钻机钻杆的定义和符号、产品分类、基本参数、试验方法、检验规则、标志、包装、运输及储存。
本标准适用于煤矿用反井钻机的各种钻杆。
Contents of MT/T 664-1997