This vector is #22 on the list in the "Daily Freebie" project at pixel77.com. Enjoy! 탄소 패턴 반복 무료 벡터 탄소 패턴
A platinum/ruthenium catalyst supported on carbon. Often used in direct methanol fuel cells to oxidize methanol. 카 탈 리스트 백 금 루 테 늄 PtRu 촉매 탄소에서 지원