It is one of the important varieties of worsted fabrics. Generally, it has two upper and two lower middle twill structures, and the twill angle is about 60 degrees. There are also single side, double side and satin back. Style features: the surface is smooth and smooth, without raising hair, the grain is clear and straight, the yarn line is dry and even, the feel is smooth and waxy, plump and flexible, the body bone is elastic, strong and wear-resistant. The weight of the fabric is generally about 280-400 grams per square meter. The luster is natural and soft, and there is no Aurora, which makes it more solemn.

