Product execution standards
GB/T2611-2007 General Technical Requirements for Testing Machines
GB/T16826-2008 Electro-hydraulic Servo Universal Testing Machine
JJG 139-1999 Verification Procedure for Tensile, Compression and Universal Testing Machines
GB/T 20688.4-2007 Rubber Bearings Part 4: Ordinary Rubber Bearings
TB/T 1893-2006 "Rail Plate Bearings for Railway Bridges"
TB/T 2331-2004 Pot Bearings for Highway Bridges
JT/T 4-2004 "Roller Plate Bearings for Highway Bridges"
JT 391-2009 Pot Bearings for Highway Bridges
GB/T 17955-2009 Technical Requirements for Spherical Bearings