Blued steel.
8" Outward Pressure Spring For Foot Pump Bellows - Player Piano Repair
5-1/2" Outward Pressure Spring For Foot Pump Bellows - Player Piano Repair
Gulbransen Pressure Spring For Foot Pump Bellows - Player Piano Repair
K&M 14046 standing aid ironing chair standing seat keyboard stool gas pressure spring bar chair
SEAFRONT French Horn Mouthpiece Pressure Reducing Valve, Brass Material, Adjustable Pressure Tool for Breath Control and Playing Ease for French Horn Players (Gold)
SEAFRONT French Horn Mouthpiece Pressure Reducing Valve, Brass Material, Adjustable Pressure Tool for Breath Control and Playing Ease for French Horn Players (Silver)
