Slivers, rovings, yarn and chopped strands, of glass

cpc code 37121 covers the production of slivers, rovings, yarn, and chopped strands made from glass. This industry plays a crucial role in the broader textile and composite materials sectors, providing essential raw materials for a wide range of applications, from insulation and reinforcement to specialized fabrics and advanced composites. As a key component of the glass manufacturing industry, this segment contributes significantly to the overall economy, supporting industries that rely on its versatile and durable outputs.

The production of slivers, rovings, yarn, and chopped strands of glass typically involves a multi-step process. First, molten glass is extruded through small orifices to form continuous filaments. These filaments are then gathered and processed into various forms, such as slivers, rovings, or chopped strands. Depending on the desired product, the filaments may undergo additional steps, such as twisting, plying, or cutting, to achieve the required characteristics.

The main inputs for this industry include high-quality glass raw materials, such as silica sand, limestone, and other mineral additives. Specialized machinery, including glass melting furnaces, fiber-forming equipment, and winding or cutting devices, are also essential for the production process. Additionally, the industry relies on a skilled workforce capable of operating and maintaining the complex equipment used in the manufacturing of these glass-based products.

The primary outputs of cpc code 37121 are slivers, rovings, yarn, and chopped strands of glass, which are then consumed by a variety of other industries. These glass-based materials are widely used in the production of 37122 Woven fabrics of glass fiber and 37123 Nonwoven fabrics of glass fiber, as well as in the manufacture of 38930 Plastic products, 38940 Rubber products, and 39110 Glass and glass products.