When there is liquid in the Pipette tip, do not place the pipette horizontally or upside down, so as to prevent the liquid from flowing back and corroding the piston spring.In the process of biological experiments, especially in the field of Cell Culture, the pipette is an indispensable laboratory instrument, and the pipette holder is also used very frequently on the laboratory ultra-clean bench or in the biological safety cabinet. The ease of use of the pipette and the pipette holder also affects the ease of experimental operation.
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In many mold manufacturing factories in China, the majority of CNC machining of tire molds relies on manual work or two- and three-axis linkage plus mold. Every time a tire mold is processed, it is necessary to make a set of masters, which is laborious, time consuming and difficult to guarantee the processing precision. Because there are currently no mature and adaptable tires on the market.