The Resato RWP-C55 pump is constructed with high-quality materials to ensure durability and longevity in harsh environments. Some of the materials used in the construction of the Resato RWP-C55 pump include:

1. Stainless Steel: The pump's high-pressure cylinders and plungers are constructed with stainless steel, which provides excellent resistance to corrosion and wear. Stainless steel is also known for its strength and durability.

2. Ceramic Plungers: The pump's plungers are coated with a layer of ceramic, which provides excellent wear resistance and extends the life of the plungers.

3. Seals: The pump's seals are made of high-quality materials such as polyurethane and PTFE, which provide excellent resistance to wear and chemicals.

4. Valves: The pump's inlet and outlet valves are made of high-quality materials such as stainless steel and ceramic, which provide excellent resistance to wear and corrosion.

5. Pump Head: The pump head is constructed with a high-strength aluminum alloy, which provides excellent durability and resistance to corrosion.