suitable for high- and low-pressure main hydraulic circuits in heavy-duty construction machinery such as large excavators, shield tunneling machines, fully mechanized coal mining equipment, and loaders; high-pressure delivery systems in metallurgical forging equipment, port lifting machinery, and large centralized hydraulic power units; hydraulic pipelines in concrete pump trucks, heavy-duty injection molding equipment, large-tonnage special engineering vehicles, and large agricultural and forestry logging machinery. suitable for severe operating conditions such as confined installation spaces, high-frequency pulses, and heavy-duty outdoor loads with extreme high and low temperatures, capable of conveying mineral hydraulic oils, emulsions, and biodegradable hydraulic oils.
| PRODUCT NAME | NOMINAL BORE | SPECIFICATION | INSIDE DIAMETER （ID）mm | MAXIMUM WORKING PRESSURE W.P | MINIMUM BURST PRESSURE B.P | MINIMUM BEND RADIUS Min.B.R | |
| mm | inch | min | max | MPa | MPa | mm | |
| 403-4DC | 10 | 3/8 | 9.5 | 9.5 | 56 | 224 | 65 |
| 403-4DC | 13 | 1/2 | 12.7 | 12.7 | 42 | 168 | 90 |
| 403-4DC | 16 | 5/8 | 15.9 | 15.9 | 42 | 168 | 100 |
| 403-4DC | 19 | 3/4 | 19.0 | 19.0 | 42 | 168 | 120 |
| 403-4DC | 25 | 1 | 25.4 | 25.4 | 42 | 168 | 150 |
| 403-4DC | 32 | 1 1/4 | 31.8 | 31.8 | 35 | 140 | 300 |
| 403-4DC | 38 | 1 1/2 | 38.1 | 38.1 | 29 | 116 | 350 |
| 403-4DC | 52 | 2 | 51.6 | 51.6 | 25 | 100 | 650 |
