... accurate amount; perfect seal, no sample leakage during centrifugation; AMA micro centrifuge tubeBasic Introduction: 1. Material: PP;2. Cap option: locking ... .51,000 /20,000pcs1.51,000 /20,000pcs2500 /10,000pcs5 300 /6,000pcs Features: 1) PP made, semi-transparent;2) with ... : ISO & CE;4. OEM design & customer logo are welcomed; AMA micro centrifuge tube