We would like to offer product as follows: Grey Portland Cement 42.5N conforms to the following specification Chemical Composition Sulphur Trioxide (SO3) 3.5% Magnesium Oxide (MGO) 6.0% Loss of Ignition (LOI) 3.5% Physical and Mechanical Properties Fineness-Specific Surface: min 280 m2/kg Soundness: max 10 mm Initial setting time (VICAT) min 45 minutes Final setting time (VICAT) max 375 minutes Compressive strength @ 03 days min 21 Mpa @ 28 days min 42.5 Mpa Product origin is Russia, Romania, Ukraine, Germany (Seller`s choice). Quantity 3,000,000 MT.