Made of imported high-purity polypropylene raw materials,V-bottom, no leakage, low residue, high transparent visibility, easy to observe liquid, no thimble design, better flatness, 100% on-line air tightness detection, to ensure that each deep well plate does not leak liquid, and can withstand the maximum 6000g centrifugal force with high stability, temperature tolerance -80°C to 121°C.