frp pipes and fittings utilized in ship construction

The material used for threaded drill rods is usually high-grade carbon or alloy steel, chosen for their exceptional strength and durability. They are heat-treated to enhance their hardness and resistance to wear and tear, which is crucial given the harsh conditions they face underground. The rods are subjected to rigorous quality control tests, including non-destructive testing (NDT) to ensure their integrity before being deployed.

...
...

The primary advantage of hardened drill bits lies in their ability to maintain their sharpness and cutting edge under heavy loads and repetitive use. Unlike standard drill bits, which can quickly become dull and ineffective, hardened drill bits are made from materials that are specifically formulated to resist wear and tear. This means that they can maintain their cutting efficiency over longer periods of time, resulting in faster drilling times and reduced downtime.

...