It could prove difficult because various manufacturers use the same track . Example is some of the B&Q stuff will be a known brand , its just finding out which one. Your pics are not big enough TBH and also TBH most tracks look the same anyway . We matched some JCC track to another make , began with L , exactly the same product.
Is it extra plug in light fittings you are after , if so haw about the customer takes one round the lighting shops or you take it to the wholesalers and match it up .
If its 12v I imagine it would be a straight forward 2 pin configuration TBH .