Synergy is the manufacturer for a number of well known customers across the world in the hardware marcket such as Mila, Kenrick, Schuco, Skaala, Unique, etc.The company located at Ningbo China and developed by means of a company wide emphasis on the importance ofproducing high qualithy products suited to customers purchasing perference and external market forces, our product range for window and door are window balance and blance shoes and window espagnolettes and sash locks and blacony door locks etc.Please contact Cynthia for more product information.