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Urea For Cement Crusher Aid

Cement grinding aid patent May 09 1989 · a Glycols have been used for years as cement grinding aids alone or with other additives b US Pat No 3420686 teaches that urea is an effective grinding aid and pack set inhibitor THE INVENTION The invention is based on the combination of … Our main products include crushing equipment, sand making equipment, beneficiation equipment, grinding equipment and building materials equipment, welcome to purchase;

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