Spare parts National Masts

Hello everybody,

I have a Dufour 2800 build in 1980. The Dufour is equiped with a mast made by “NATIONAL MASTS”. The model number of the mast is 79210 Mauze. Does anybody now this manufacturer? The search in the web had no success so far.

I need following part to fix the main sheet to the boom.

Sorry for not writing in Dutch.

Best regards,