no
C : refer to concret 20 : its Resistance of concret cube when we make test on it after 28 days measuring by N/mm2.
with metal and concret
it is a steroid
concret
what rate of trimix concret
Water+cement
Steroid Hormones
Is lidocaine a steroid
Is Combivent a steroid?
common noun
Concrete is a mixture not a chemical compound.
water+cement=concrete