Vacuum Blood Collection Tubes, Test Tube, Pipette Tip manufacturer / supplier in China, offering Laboratory Use 0.5ml 1.5ml 2ml Plastic Freezing Cryovial Tube Collection Sampling Tube Centrifuge Tube, Plastic Laboratory Leakproof 50ml Micro Conical Bottom Falcon Centrifuge Test Tubes, Hot Selling 15ml Conical Laboratory Centrifuge Tubes Transparent PP Material with Nut and so on.