This is called trench type, which literally means the need to dig trenches on the ground. The depth needs to be measured and calculated based on the driving environment and the device environment. The buried side of the device is reserved for buried plates. The trolley wire bracket is welded on the buried plate. You can. The trench-type device method is more messy than the overhead type, and it is required to ensure the drainage of the trench to clear and to ensure the dry and safe environment of the trolley-line device.
Outdoor safety wire contact line, due to the harsh environment of the device, it is recommended to use good quality products so that it can withstand the inspection of the external environment.
We can produce the Gas cylinder project, such as the 4130 steel pipe, 4140 steel pipe,4142 steel pipe,4145 steel pipe and 4147 steel pipe. Chengde is the first company to acquire the certificate of gas cylinder steel and supplied more than 160 thousand tonnage in last ten years, and our main reference list as follow:
Customer | Material | Size range | Quantity (MT) |
Enric | 4130/4130x | (406~720)*(10.3~27.5)mm | 135,000 |
Enric | 4142 | (559~615)*(9.8~28.9)mm | 2542 |
Enric | SA372 J70/E70 | (559~610)*(21.3~33.6)mm | 3114 |
NK | 4130/4130x | (559~720)*(14.2~29.4)mm | 20,500 |
NK/CPI/FIBA | 4142/4145/4147 | (406.4~609.6)*(12.7~39.42)mm | 3994 |
NK | SA372 J70/E70 | 610*29.4 mm | 464 |
The Piercing and rolling technology of Chengde possesses a number of patents in designing and manufacturing the equipment, and has improved in lots of areas targeting better performance and efficiency, which has distinguished itself from the peers.
Stable, fast and continuous
Flexible on non-standard sizes
Swift tooling switching
Uniform mechanical properties and dimensions in Longitudinal & Transversal directions
Gas Cylinder Pipe,4140 Pipe,4130 Pipe,4142 Pipe
YANGZHOU CHENGDE STEEL PIPE CO.,LTD , https://www.chengdepipe.com