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Roland Szentpali joins to Sierman family.
Mr. YanYi Zeng(Rotterdams Philharmonisch Orkest,Tuba Artist) joins the Sierman family
斯尔曼乐器很荣幸宣布:韩小光老师正式成为斯尔曼圆号代言人
Professor Branimir Slokar
Sierman trombone ensemble