●  Globalized supplier management. 
●  Top global suppliers ensure the quality of critical materials. 
●  The raw materials of bovine pericardium were purchased from animal material manufacturers in Australia, and the traceable and medical grade bovine pericardium was selected and separated according to the unique Cingular Standard to ensure the high performance of animal tissues. 
●  Alloy, suture, cloth, inner and outer lining and other core materials are all from high-quality suppliers in the United States.