then pass into the carbon, medium carbon into the workpiece surface, chain in order to improve the hardness and wear resistance. quenching. parts :after heated to a certain temperature in heat treatment equipment, heat preservation time, and then according to the requirements in different medium cooling...
then pass into the carbon, medium carbon into the workpiece surface, chain in order to improve the hardness and wear resistance. quenching. parts :after heated to a certain temperature in heat treatment equipment, heat preservation time, and then according to the requirements in different medium cooling...
then pass into the carbon, medium carbon into the workpiece surface, chain in order to improve the hardness and wear resistance. quenching. parts :after heated to a certain temperature in heat treatment equipment, heat preservation time, and then according to the requirements in different medium cooling...
then pass into the carbon, medium carbon into the workpiece surface, chain in order to improve the hardness and wear resistance. quenching. parts :after heated to a certain temperature in heat treatment equipment, heat preservation time, and then according to the requirements in different medium cooling...
then pass into the carbon, medium carbon into the workpiece surface, chain in order to improve the hardness and wear resistance. quenching. parts :after heated to a certain temperature in heat treatment equipment, heat preservation time, and then according to the requirements in different medium cooling...
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"nothing can survive biologically" because the filter is heated to degrees c to kill the pathogens, says ren. ren and his research team collaborated with monzer hourani, the mastermind behind the filter and ceo of medistar, a houston-based medical real estate developer. filter kills anthrax spores and...
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