design, construction, maintenance and calibration work
process, Bridge engineering refers to the survey, 
in terms of bridge materials, with high strength, light weight,
low cost for selecting the main basis, still give priority to with
development of the traditional steel and concrete, improve its
strength and durability.
| ID | Description |
Material |
|
No.PMC20163207 |
Rectangular tube | ASTM A500 |
|
Specification |
Purchase Time |
Completion Date |
|
200*150 |
23/05/2015 |
15/07/2015 |
