JG/T 3025-1995 Π Shape precast reinforced concrete skylight purlin

JGJ 56 GBJ 119 YB 9072 GBJ 81 GBJ 107 GBJ 321 GB 175-1999 Portland cement and ordinary Portland cement GB 175-2007 Common portland cement GB 175-2023 Common portland cement GB 1344-1999 Portland blastfurnace-slag cement,Portland pozzolana cement and Portland fly-ash cement GB 13013-1991 Hot rolled plain steel bars for the reinforcement of concrete 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/T 700-1988 Carbon structural steels GB/T 700-2006 Carbon structural steels JGJ/T 53-2011 Technical specification for repairing water seepage of building JGJ 52-2006 Standard for technical requirements and test method of sand and crushed stone (or gravel) for ordinary concrete JGJ 63-2006 Standard of water for concrete GB 50204-2015 Concrete Structure Construction Quality Acceptance Standards