Vacuum Blood Collection Tubes, Test Tube, Pipette Tip manufacturer / supplier in China, offering Mechanical Micropipette 20-200μL Model Mc200 Smooth Plunger High Repeatability ISO Certified, Single Channel Adjustable Pipette 2-20μL Model Sc20 Precision Dispensing UV Resistant Long Lifespan, Manual Pipette 0.5-5ml Model M5 Easy Calibration Autoclavable Lightweight Laboratory Use and so on.