GB/T 4697-2017
Hot rolled steel section for mine timbering (English Version)
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GB/T 4697-2017
Standard No.
GB/T 4697-2017
Language
Chinese,
Available in English version
Release Date
2017
Published By
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会
Latest
GB/T 4697-2017
Replace
GB/T 4697-2008
GB/T 4697-2017 history
2017
GB/T 4697-2017
Hot rolled steel section for mine timbering
2008
GB/T 4697-2008
Hot-rolled U-type steel for mine timbering
1991
GB/T 4697-1991
Hot-rolled U-type steel for mine timbering
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