B â™ / Convertible model. The valve system is 3 pistons. Bell is yellow brass diameter 280 mm, bore size 14.5 mm, silver plated finish. Two blowing pipes
A high cost performance model that can be sounded firmly even by the first person. With oil varnish finish and polite handwork, we realized a balanced tone in all the sound range.
Professional model B ♠pipe. Tubular body is Granadilla, Key is forged silver plating, Core metal · Screws are stainless steel, Needle spring · Leaf spring is hard steel, 17 key 6 ring · boom type model.