I have 2 different websites A and B.
Now I want to show some product from B to A.
Which means, some Product in A website will be the same as in B website. Now I want to import these products from B website to A website.
How I can do this?
You can go through
Admin -> Catalog -> Manage products grid and search by website B in grid.
It will list all the products assigned to website B.
Now you can select products you want to assign to website A. And select update attribute options from action dropdown on top right of grid.
You can go through last tab websites and assign products to both websites A and B. See screenshot.