| Term 
 | Definition 
 
        |       Structural steel Somehow obdurable, requires certain level of welding capacity and performance; used to build different types of engineering machinary structural parts.(architecture, bridges, automobile, boat building.)  |  | 
        |  | 
        
        | Term 
 | Definition 
 
        |     Alloy Structural steel   Steel has been inserted with alloys in order to improve performance of the end product.
   |  | 
        |  | 
        
        | Term 
 | Definition 
 
        |       Carbon Structural steel Steel has lower than 0.08% carbon content, plus a strict standard on other chemicals to ensure mechanical or dynamical functionality or performance. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        |       Die steel Alloy tool steel use to produce cold-punching mould, hot-forging die, compression mold;  |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        |       High pressure tube billet |  | 
        |  | 
        
        | Term 
 | Definition 
 
        |     casting round tube billet |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        |       Medium heavy-plate pipeline steel |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        |       Carbonisation bearing steel |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        |       bearing steel Alloy structural steel used to produce, ball bearings ,rollers, needle bearing and bearing ring.  |  | 
        |  |