The product quality meets the national concrete admixture standard（GB8076—1997.

It is a β-naphthalene sulfonate of non-air-introduction early strong water-reducing agent which consists chiefly synthesis of β-naphthalene sulfonic acid and methanal, and its main characteristics are as follows: it has high dispersancy, condensation capacity, and water-reducing rate and low foaming ability, low air introduction, also it can enhance the intensity and save cement to a large extent.

The appropriate dosage for it is equal to 0.5-1.5% of cement weight,and the best one should be determined by experiment.