Decoding Container Repair Marks and Corten Steel in Shipping
The inverted red triangle mark on the upper left of a container's rear door indicates that specific materials, typically Corten steel, must be used for repairs after damage. Corten steel offers excellent corrosion resistance, effectively extending the container's lifespan. This mark is a crucial component of the container's 'identity card' and is vital for ensuring transportation safety. It serves as a warning that substandard materials should not be used for repairs to maintain the structural integrity of the container.
