YB/T 5349-2006 Metallic materials -Determination of bending mechanical properties

YB/T 5349-2014 The method of testing mechanical properties of metal materials during bending

GB/T 10623-1989 Metallic materials—Terms of mechanical test GB/T 10623-2008 Metallic material—Mechanical testing—Vocabulary GB/T 2975-1998 Steel and steel products—Location and preparation of test pieces for mechanical testing GB/T 2975-2018 Steel and steel products—Location and preparation of samples and test pieces for mechanical testing GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values JJG 139-1999 Universal Tension and Compression Testing Machine JJG 139-2014 Tension,Compression and Universal Testing Machines JJG 157-2008 Universal Tension and Compression Testing Machines for Non-metallic JJG 157-1995 Verification Regulation of Tension Compression and Universat Testing Machina for Non-metallic JJG 475-2008 Electronic Universal Testing Machine JJG 762-2007 Extensometer