No. 131635
40B
- Country or region
China - Standard systemYB
Standards
- YB/T 037:1993Quality structure cold-draw flat steels
- YB/T 5132:1993Alloy structural steel sheets
- YB/T 5301:2010Alloy structure steel wires
- YB 481:1980YB 481
- YB/T 037:2005Quality structure cold-draw flat steels
- YB/T 5132:2007Alloy structural steel sheets
- YB/T 5221:2014Alloy structure steel round tube blank hot rolled and forged for making seamless tube
- YB/T 5221:1993Alloy structure steel round tube blank hot rolled and forged for making seamless tube
- YB/T 5301:2006Alloy structure steel wires