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In the fields of biological sample storage, medical cold chain transportation, and laboratory research, the normal operation of liquid nitrogen tanks is crucial for the cryogenic storage of biological samples such as cells, embryos, and frozen sperm. However, there are many ...

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BRT PTFE Back Up Rings Fits Excavator BRT type PTFE+copper powder material Seal ring back support ring. BRT back up ring seal series materials are: PTFE-polytetrafluoroethylene material and copper powder polytetrafluoroethylene. The addition of copper powder PTFE has higher ...

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Sanping Back Up Ring China buck up ring seal is a thin ring designed to prevent the O-ring from extruding under pressure. They are installed in the gland between the seal and the gap to provide zero gap. Types of Backup Ring Seals BRT Back Up Ring Fits Excavator N4W Back Up ...

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