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Mẫu tem decal trong suốt in UV mực trắng ép kim óng ánh tuyệt đẹp - In ấn bởi In Kỹ Thuật Số due to the fact 2006Secondary fixation: To boost the contrast from the minute constructions In the specimen and give more balance, a secondary fixation is completed utilizing osmium tetroxide (OsO4).A vacuum method is applied to