There are certain requirements for each steel structure grid used in grid engineering. Usually, steel structure grids have special or higher requirements in the following aspects. Haiyao Xiaobian tells you:
Bonding parts: material, surface roughness, error, surface treatment, straightness (or radian);
Joints: hole position deviation, bolt grade; welding method, welding specification, welding material; air tightness, non-destructive testing, liquid penetration test, etc. are required;
Overall structure: vertical, horizontal, etc.;
Packaging: packaging materials, methods;
Warehouse: ambient temperature, humidity;
Transportation: loading and unloading, placing in the car, placing in the container, etc.
