YB/T 062-1994 Metallurgical industrial furnace burner technical specification

YB/T 160-1999 Performance testing methods for burners of metallurgical industrial-furnaces YB/T 062-2021 Metallurgical industrial furnace burner technical specification

GB 1.3 GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 1184-1996 Geometrical tolerancing—Geometrical tolerance for features without individual tolerance indications GB/T 1236-2000 Industrial fans—Performance testing using standardized airways GB/T 1236-2017 Industrial fan—Performance testing using standardized airways GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance indications GB/T 2888-1991 Methods of noise measurement for fans, blowers compressors and Roots blowers GB/T 2888-2008 Methods of noise measurement for fans blowers compressors and Roots blowers GB/T 6388-1986 Transport package shipping mark GB/T 6414-1999 Castings—System of dimensional tolerances and machining allowances GB/T 6414-2017 Castings—Dimensional tolerances and geometrical tolerances and machining allowances GB/T 9112-2000 Types and parameters for steel pipe flanges GB/T 9112-2010 Types and parameters for steel pipe flanges GB/T 9174-1988 General specification for transport packages of general cargo GB/T 9174-2008 General specification for transport packages of general cargo GB/T 9439-1988 Grey iron castings GB/T 9439-2010 Grey iron castings GB/T 9439-2023 Grey iron castings GB/T 11351-1989 Mass tolerances for castings GB/T 11351-2017 Mass tolerances of casting GB/T 12464-2002 Wooden boxes GB/T 12464-2016 Wooden boxes GB/T 12469-1990 Quality assurance of welding—Requirement for fusion welding joint of steel and classification for imperfection GB/T 191-2025 Graphical symbols marking for handling and storage of packages