GB 16726-1997 Reinforced concrete horizontal beam and longitudinal beam

GB J81 GB J107 GB J321 JG J56 JG J63 YB 9072 GB 175-1999 Portland cement and ordinary Portland cement GB 175-2007 Common portland cement GB 175-2023 Common portland cement GB/T 700-1988 Carbon structural steels GB/T 700-2006 Carbon structural steels GB 1344-1999 Portland blastfurnace-slag cement,Portland pozzolana cement and Portland fly-ash cement GB 1499-1998 Hot rolled ribbed steel bars for the reinforcement of concrete GB/T 1499.1-2008 Steel for the reinforcement of concrete—Part 1:Hot rolled plain bars GB/T 1499.1-2017 Steel for the reinforcement of concrete—Part 1:Hot rolled plain bars GB 1499.1-2024 Steel for the reinforcement of concrete—Part 1:Hot rolled plain bars GB/T 1499.2-2007 Steel for the reinforcement of concrete—Part 2:Hot rolled ribbed bars GB/T 1499.2-2018 Steel for the reinforcement of concrete—Part 2:Hot rolled ribbed bars GB 1499.2-2024 Steel for the reinforcement of concrete—Part 2:Hot rolled ribbed bars GB/T 1499.3-2002 Welded steel fabric for the reinforcement of concrete GB/T 1499.3-2010 Steel for the reinforcement of concrete—Part 3:Welded fabric GB/T 1499.3-2022 Steel for the reinforcement of concrete—Part 3:Welded fabric GB 13013-1991 Hot rolled plain steel bars for the reinforcement of concrete GB/T 14684-2001 Sand for building GB/T 14684-2011 Sand for construction GB/T 14684-2022 Sand for construction GB/T 14685-2001 Pebble and crushed stone for building GB/T 14685-2011 Pebble and crushed stone for construction GB/T 14685-2022 Pebble and crushed stone for construction JB/T 13014-2017 Fully hydraulic core drilling machine GB 50204-2015 Concrete Structure Construction Quality Acceptance Standards