Rubber seals/corner trims

Anyone know where to obtain the curved black rubber corner trims that fit into the angles of the window frames on a 5 door 1992 K10?
 
Spare items were not found at nowadays,so u can design it your self,paste edge with black silicone gum,After that u can trim with razor blade.
 
Yes, someone else told me the same thing. I might have a go at that. Alternatively there may be a suitable rubber profile out there somewhere which can be trimmed/shaped to do the job. The closest I can find is: T solid rubber profile 27-23mm. Article number 21605277from Rubberstock
 
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