| Model No. | Surface Treatment | 2D | 3D | |
| GRH30-35 | Normal/Antirust/Black Coating |  |  |  |
| Corrosion - Resisting | | | | |
| GRH30-50 | Normal/Antirust/Black Coating | | | |
| Corrosion - Resisting | | | | |
| GRH30-65 | Normal/Antirust/Black Coating | | | |
| Corrosion - Resisting | | | | |
| GRH30-80 | Normal/Antirust/Black Coating | | | |
| Corrosion - Resisting | | | | |
| GRH30-95 | Normal/Antirust/Black Coating | | | |
| Corrosion - Resisting | | | | |
| GRH30-110 | Normal/Antirust/Black Coating | | | |
| Corrosion - Resisting | | | | |
| GRH30-125 | Normal/Antirust/Black Coating | | | |
| Corrosion - Resisting | | | |