... aaAlloy Composition: 43%Ag, 32% The manufacturer, AT&M Biomaterial Corp., Ltd., has passed the certification of ISO13485: ... Information About us AT&M international trading company is the trading company in CISRI Group.AT&M Biomaterials Co., Ltd.(www ... System Certificate CE0197ISO9001:2008ISO13485:2003 Photoes othersHigh-tech enterprise certificate National engineering laboratory Amalgam Capsules