| EXECUTIVE STANDARD | STEEL KIND/STEEL GRADE | APPLICATION |
| ASTM A106 A53 APL 5L | Gr.B | it is used for conveying gas,water,and petroleum for oil and natural gas industries |
| JIS G3445 | S20C S45C | it is used for machinery,automobile,bicycle,furniture and components for other machines. |
| DIN 1629 1248 | ST37 ST44 ST52 | it is used for manufacturing pipeline,vessel,equipment,pipe fittings and steel structure. |
| GB/T 8162 | 10 20 35 45 16Mn | for common structures and mechanical structures. |
| GB/T 8163 | 10 20 Q345 | for conveyance of petroleum、natural gas and other common fluids. |
