[Milsurplus] off topic concrete question

[Tony Snider]

Hi folks
well its sort of on topic, I am finally building a radio shop !! with a prefab metal "A" frame building on a concrete slab,  the concrete contractor poured the slab and many of the anchor bolts are wrong and will need to be redrilled in the correct spot on the slab, any advice on what type of anchors to use?? I know there are the compression type and the epoxy ones which I have no experience with. I know there is a wealth of  knowledge here on many topics and I am sure there is someone who is a concrete expert, sorry for the off topic question
Thanks in advance!
Tony
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