DESCRIPTION • Metal damper for wooden grille. • No hardware needed. • The metal damper and wooden grille are same size. INTRODUCTION Ningbo Xiangbo Machinery Co., Ltd. is specializedin handling the export and import business in manufacturing field. We have our own professional manufacturer with 50 million annual turnovers which is established in 2006, covering 15,000 square meters with over 150 productions and testing equipments.