Which of the following materials is NOT commonly used in making spray nozzles?

Spray nozzles are typically designed to withstand the pressures and corrosive properties of various liquids, including pesticides and herbicides. Materials commonly used in the manufacturing of spray nozzles include brass, plastic, and ceramic.

Brass is utilized for its durability and resistance to corrosion, making it suitable for high-pressure applications. Plastic is lightweight, cost-effective, and resistant to many chemicals, making it a very popular choice for many types of spray nozzles. Ceramic nozzles are known for their hardness and wear resistance, making them ideal for abrasive materials.

Wood, on the other hand, is not suited for use in spray nozzles due to its porous nature, tendency to degrade when exposed to moisture and chemicals, and inability to withstand high pressure without damaging. This makes wood an impractical choice for creating durable and functional spray nozzles.