Real Madrid Technology has obtained a new invention patent authorization: “A method for preparing high molecular weight polyether polyols using waste grease”
Real Madrid Technology has obtained a new invention patent authorization. The patent is called “A method for preparing high molecular weight polyether polyols using waste oil”. The patent …
Affected by the real estate market, my country’s cement production gradually declined
Cement, also known as red clay, cement, etc., is a powdery hydraulic inorganic cementitious material. The slurry formed after mixing with water can harden in the air or water. Compared with other buil…