"Widen" brand Portland cement clinker is a semi-finished product for the production of various Portland cement, with high strength, 3-day compressive strength above 30MPa, 28-day compressive strength above 60MPa, low f-CaO content , The mineral composition is reasonable, the granulation is uniform, the strength fluctuation is small, the alkali, chlorine and sulfur content is low, and the grindability is good.