Many factories, in order to reduce so-called inventory and improve transportation tooling turnover, require concrete components with a grade of C30 under the operation of some seemingly ignorant experts.

They can produce precast components with a grade of C40 or even C50 for you.

Swift Lift Void Former

Don’t ask them how they achieved their cost targets, I just want to ask – is this okay? Why do factories need to exceed their labeling?.