MT/T 540-2025 Bucket for construction of the shaft in coal mine

MT/T 540-1996 Depalletizing bucket

GB/T 229-1994 Metallic materials—Charpy notch impact test GB/T 229-2007 Metallic materials—Charpy pendulum impact test method GB/T 229-2020 Metallic materials—Charpy pendulum impact test method GB/T 699-1999 Quality carbon structural steels GB/T 699-2015 Quality carbon structure steels GB/T 700-1988 Carbon structural steels GB/T 700-2006 Carbon structural steels GB 863.2 GB/T 1591-1994 High strength low alloy structural steels GB/T 1591-2008 High strength low alloy structural steels GB/T 1591-2018 High strength low alloy structural steels 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 3077-1999 Alloy structure steels GB/T 3077-2015 Alloy structure steels GB/T 5117-1995 Carbon steel covered electrodes GB/T 5117-2012 Covered electrodes for manual metal arc welding of non-alloy and fine grain steels GB/T 8110-1995 Welding wires for gas shielding arc welding of carbon and low alloy steels GB/T 8110-2008 Welding electrodes and rods for gas shielding arc welding of carbon and low alloy steel GB/T 8110-2020 Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels GB/T 8163-1999 Seamless steel tubes for liquid service GB/T 8163-2008 Seamless steel tubes for liquid service GB/T 8163-2018 Seamless steel pipes for liquid service GB/T 8923.1-2011 Preparation of steel substrates before application of paints and related products—Visual assessment of surface cleanliness—Part 1:Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings GB/T 10045-2001 Carbon steel flux cored electrodes for arc welding GB/T 10045-2018 Tubular cored electrodes for non-alloy and fine grain steels GB/T 10111-2008 Generation of random numbers and procedures applied to sampling inspection for product quality GB/T 13306-1991 Plates GB/T 13306-2011 Plates GB/T 13452.2-2008 Paints and varnishes—Determination of film thickness GB/T 25135-2010 The quality control criterion of forging technology GB 50661-2011 Code for welding of steel structures AQ 1043-2007 Mining Product Safety Mark Identification MT/T 154.1-1992 The guidelines for the preparation of coal mine electromechanical product models and management measures MT/T 154.1-2011 Coal mine electromechanical product model designation method Part 1: Guidelines NB/T 11517-2024 Nondestructive inspection methods and criterions for important load-bearing components of mining hoisting conveyance