Hongqi Instrument, tsim nyob rau xyoo 1993, yog ib qho ntawm kev coj ua tus ntsuas kub digital bimetal thiab cov khoom lag luam nyob hauv Suav teb. Muab koj tus nqi qis thiab kev pabcuam zoo, peb zoo siab tos txais koj rau cov lag luam muag khoom lag luam nto moo hom 'digital bimetal thermometer ua nyob rau hauv Suav teb ntawm tus nqi pheej yig los ntawm peb lub hoobkas.

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