FR-31B Single U-frame / dovetail foundation
The CONTECH® single U-frame or dovetail foundation gets welded onto the deck of the vessel. The fitting has an angle of 45 degrees and is used in combination with the U-frame or dovetail bottom twist lock B-45, B-45LL, B-46 to lock the corner castings of the container.
AA-2C, DF-31, FE-03-1, I-22-E, F597-1, D5A-FF-45,