... aaAlloy Composition: 43%Ag, 32% The manufacturer, AT&M Biomaterial Corp., Ltd., has passed the certification of ISO13485:2003. ŸAlloy Composition: 43 ... ari, by sea Company Information About us AT&M international trading company is the trading company in CISRI Group.AT ... and Alginate etc. Our products are produced conforming to international standards of quality and performance, and our company passed ...