4. Zippers: These fasteners are available in a wide variety of colors, lengths and types. Several type of speciality zippers are available. Three basic types of zipper are conventional, Button Button Hole Stitching of button and button hole 147 separating and invisible zippers. All zippers consist of either a chain of metal or plastic teeth or a synthetic coil joined to fabric tapes. Chains and coils are made in many weights and sizes, spirals of polyester or nylon. Coil zippers are lighter in weight, and usually more flexible, than chain zippers. Unlike metal, they will not rust, and they are available in more colors. Metal zippers are less affected by heat.

4. Class-four wools: This class refers to half-breeds. Fiber length ranges from 1 to 16 inches, coarse, hairlike have relatively few scales and little crimp and are smooth and lustrous. Mainly used for carpets, rugs and inexpensive low-grade clothing.