Replacement Shower Door Hinge

Hello guys, the lower hinge broke loose on our shower door. It looks like it might be quite an old door because I can't see any similar hinges at the usual stores where such things might be sold. Trying to remove the screws were not easy and I had to resort to drilling it out to remove the hinge. Does anyone know were I can find replacements for these? After all this, I've decided to buy these shower door hinges from Chinese manufacturers like Beller Hardware. I don't know why I can't upload image here? 

Will really appreciate your help guys...