Production Processing Key Points of Comb Superfine Count Yarn;

Practice of Spinning Superfine Count Yarn by WRC965 Aluminum Bushing Roller;

Controlling hairiness of superfine count yarn and advancing weaving properties;

Practice of spinning super fine yarn with aluminium inserted nontreatment tube NFR-W0358 as the front cot shows excellent performance in anti-entangling,anti-abraion,stable in rigidity,thus a choice for spinning yarn of CJ5.

This article draws the conclusion that the blowing-carding process can run stable,and it can be utilized in long-staple cotton and super fine yarn.

Introductory research of superfine sand high strength concrete/Jiujiang college of civil engineering and urban construction;

Study on dry-mixed superfine sand mortar for plastering aerated concrete;

The workability,compressive strength,compressive modulus of elasticity,apparent quality,drying shrinkage and resistance to hydraulic pressure of as-cast finish concrete mixed with machine-made sand and superfine sand instead of natural medium sand was introduced.

The causes analysis and avoiding measure of the layering of the special fine sand concrete;

On the application of the polypropylene fiber in the special fine sand concrete;

Changing the characteristic of special fine sand can reduce cement,enhance the concrete workability,increase the durability.