GB/T 17411-2012 English-translated version


Book Description

GB/T 17411-2012 Code for welding of steel structures English-translated version










GB/T 2039-2012 English-translated version


Book Description

GB/T 2039-2012 Code for Acceptance of Construction Quality of Masonry Engineering English-translated version




GB 13837-2012 English-translated version


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GB 13837-2012 Basic indentification colors and code indications and safety sign for industrial pipelines English-translated version




GB 50187-2012 English-translated version


Book Description

GB 50187-2012 Steel swing check valve for petroleum petrochemical and allied industries English-translated version