Complaint
| No. | Application series | Representative steel type | Description |
| 1 | Petroleum machinery series | AISI4150,AISI4140,AISI4130,30CrMo,4145H | Valve body, valve block, drill pipe, drill collar |
| 2 | Tool mold series | 1.2714,5CrMnMo,5CrNiMoV,1.2738,1.2311,1.2312 | Die casting mold, forging mold, plastic mold |
| 3 | Bearing series | 52100,GCr15,SUJ2 | Bearing ring, rolling bearing, piston rod |
| 4 | Marine series | 4140,42CrMo,SCM440,709M40 | Marine accessories |
| 5 | Car series | SAE8620,20CrNiMo,SNCM220 | Crankshaft, gear |
| 6 | Heavy-duty transmission series | 40CrNiMo,SNCM439,SAE4340,EN24 | Port transmission parts, helicopter rotor shaft, turbine shaft |
| 7 | Mining machinery series | 655M13,826M40,25CrMo | Mining bit, carburizing and crushing machinery |
| 8 | Wind power gear series | 18CrNiMo7-6, 17CrNiMo6, 1.6582,1.6587,SAE8620 | Meet the design life of more than 20 years |
| 9 | Wind power spindle series | 34CrNiMo6,817M40 | Meet the design life of more than 20 years |
| 10 | Nitriding series | 20MnCr5,38CrMoAl,31CrMoV9 | Gear, injection molding machine screw / barrel,precision components |
| 11 | Pressure vessel series | 15CrMo,13CrMo4-4 | Boiler, petrochemical hydrogenation vessel accessories |
| 12 | Metallurgical roll series | 21CrMoV511,W1.7225,EN19,709M40 | Steel rolling roll |
