The enormous growth of the Internet has brought about the urgent need for infrastructure and hardware to support it. This has brought great growth potential for IT related businesses, the telecommunication and the computer industry.

The computer hard disk drive (HDD) uses enamel wires, i.e., bobbinless coils in spindle motor. The base coat is Polyurethane or heat resistant Polyuretthane, solderable. Colored wire is a choice. The bonding layer is suitable for high-speed winding such as Spindle Coil.