No. 142904
U21652
- Country or region
China - Standard systemGB
Standards
- GB/T 699:2015Quality carbon structure steels
- GB/T 699:1999Quality carbon structure steels
- GB/T 3279:2009Hot-rolled spring steel sheets and plates
- GB/T 711:2008Hot-rolled quality carbon structural steel plates, sheets and wide strips
- GB/T 3078:2008Technical requirements for quality structural steel cold drawn bars
- GB 3530:1983Heat treatment spring steel strips
- GB 4358:1984GB 4358
- GB 4360:1984GB 4360
- GB/T 19530:2004Hot-rolled wire rod for quenched and tempered springs