Biejtie raad nodig...Diaphragm Manufacturer??

Gents,

I'm a "newbie" on here so this is my first post. Hope its in the right category.

Anyways... I have a VN1500 and I need new Carb Slide Diaphragms. I bought a set online but it was the correct size!

Does anyone know of a company that manufactures diaphragms? I hear there are a few companies that actually do, but I cant seem to find them.

I am based in Cape Town, so preferably a company in the Western Cape.

Any info or help will be greatly appreciated.

Thanks