Are my workplace breaking the law?

[Slightlysayan]

I work in a very populated warehouse on a table with machinery (sewing)

Most of us have only just returned to work after furlough.
Our work stations are not two meters apart and I raised this with my manager.

He said that as we are back to back the world stations don’t need to be 2m apart.

I don’t feel like this is correct as we are still within 2m of each other all day.

Am I being unreasonable or should I refuse to work until this is changed?

Its legal and you only have to isolate if you have been within 2 metres face to face with that person who is positive for more then 15 mins however all staff should have masks on unless exempt