-Innovative CHROMA stent platform with cobalt chromium alloy -Strut thickness only 84um -Classic rapamycin -Optimized drug dosage -Potential faster healing process without affecting restenosis rate -Unique formulated biodegradable polylactic acid(PLA) coating as drug carrier, which will degrade completely into CO2&H2O in 6-9 month with reduced chronic inflammatory reactions -Effective reduction of the risk of in-stent ST/VLST   -Targeted drug release via abluminal biodegradable coating -Larger side branch access with better operation experience -More complete specifications and sizes give clinicians more better selections