*GB/T 228-1987
*GB/T 229-1994 Metallic materials-Charpy notch impact test
*GB/T 231-1984 Metallic materials--Brinell hardness test
*GB/T 1979-1980 Diagram of a low magnification texture blemish grading of structural steel
*GB/T 2971-1982 Method of fracture test for carbon steel and low alloy steels
*GB/T 4236-1984 Steel; Examination by sulphur print(Baumann method)
*GB/T 10561-1989 Steel-Determination of content of non-metallic inclusion-Micrographic method using standard diagrams
*GB/T 12363-1990 Classification of forging functions
*GB/T 13298-1991 Metal－Inspection method of microstructure
*GB/T 13299-1991 Steel. Determination of microstructure
*GB/T 15826.1-1995 Machining allowances and tolerances for steel open die forgings on hammer-General requirements
*GB/T 15826.2-1995 Machining allowances and tolerances for steel open die forgings on hammer-Disks and columns
*GB/T 15826.3-1995 Machining allowances and tolerances for steel open die forgings on hammer-Disks with holes
*GB/T 15826.4-1995 Machining allowances and tolerances for steel open die forgings on hammer-Rings
*GB/T 15826.5-1995 Machining allowances and tolerances for steel open die forgings on hammer-Seamles cylinder hushings
*GB/T 15826.6-1995 Machining allowances and tolerances for steel open die forgings on hammer-Shaft without steps
*GB/T 15826.7-1995 Machining allowances and tolerances for steel open die forgings on hammer-Shaft with steps
*GB/T 15826.8-1995 Machining allowances and tolerances for steel open die forgings on hammer-Single throw crankshaft
*GB/T 15826.9-1995 Machining allowances and tolerances for steel open die forgings on hammer-Forging without machining
*JB/T 8421-1996
*JB/T 8467-1996
*YB/T 5148-1993 Metal-methods for estimating the average grain size