The flatness and levelness of concrete floors has become a big deal. If you've ever sat at a restaurant table that rocked up and down, slopping wine out of your glass and causing you to launch a ...

Interestingly, this co-molding process isn’t used as an excuse for some iPads’ slight bends, but instead it’s presented as evidence of Apple pursuing even stricter flatness standards than ever before.

With modern finishing equipment, it has become relatively easy for flatwork finishers to achieve overall floor flatness/levelness numbers of FF35 and FL25 — commonly specified tolerances for ...