˙PP material
˙Can withstand autoclaving at 121°C
˙It can be used in dry and humid environments, and can even be placed in a sink without floating
˙Can be used in the refrigerator, and will not be deformed and fragile
˙There are embossed English letters on the edge of the tube rack to facilitate the arrangement and identification of the test tubes
˙Each specification has four colors: white (03), blue (04), red (10), yellow (06)