GuReater CoCr Sirolimus-eluting Coronary Stent System Cobalt-based alloy stem, excellent balance between support strength and flexibility. good rediopeque Thinner struts thickness. decreased 20% Better biocompatibility, fatigue and corrosion resistant performance 15% inaeese in density with better radiopacity MRI compatible Biodegradable polymer coating. scientific degradation period, precisely drug-releasing speed Biodegradable inner layer Sirolimus, effectively inhibit restenoeis Pro-dilatation balloon, for better crossability