Valve oil is a lubricant for valves of brass instruments. It is typically mostly mineral oil with a small amount of other ingredients, although synthetic oils are increasingly available.
Valve oil is a lubricant for valves of brass instruments. It is typically mostly mineral oil with a small amount of other ingredients, although synthetic oils are increasingly available. (en)
Valve oil is a lubricant for valves of brass instruments. It is typically mostly mineral oil with a small amount of other ingredients, although synthetic oils are increasingly available. (en)