Wooden-straight-damper for trumpet, has plate glued with body, and cork pieces stuck together with adhesive at upper area, where body and plate are rotation symmetrical parts, and are made on computer numerical control-lathe

摘要

The damper has a body, a plate and three pieces of cork, where the plate is glued with the body and the cork pieces are stuck together with adhesive at an upper area. The body and the plate are rotation symmetrical parts, and are made on a computer numerical control (CNC)-lathe. The cork pieces are rectangular, and the body and the plate are made of wood. The three pieces are made of cork.