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- As the Industrial Revolution gained momentum in the 18th and 19th centuries, so did the demand for raw materials like coal, iron, and stone. This led to the invention of more advanced drilling techniques, including percussion drilling, which used a hammer mechanism to deliver repeated blows to the drill bit. While this method was an improvement over primitive techniques, it still required considerable。
- Twist drill bits are the most versatile and widely used type of hole drill bit. They feature a spiral cutting edge that allows for easy drilling in a variety of materials. Twist drill bits come in various sizes and are suitable for general purpose drilling tasks.

If you don’t know fiberglass-reinforced grating, this stands for fiberglass-reinforced plastic. It’s considered to be a type of industrial flooring used in many kinds of construction projects.


Our custom-made products in any size or design to fit your needs, including fiberglass troughs, wash troughs, clarifying troughs, clarifier, collection and effluent (launders) are constructed of advanced FRP materials utilizing the lay-up process.







