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上海精宏GDH-2005B高低溫試驗箱【廠家正品】 GDH型 高低溫實驗箱　Model GDH High/Low Temperature Experimental Oven GDHS型 高低溫濕熱實驗箱 Model GDHS High/Low Temperature and Damp Heat Oven

上海精宏GDH-2010B高低溫試驗箱【廠家正品】 GDH型 高低溫實驗箱　Model GDH High/Low Temperature Experimental Oven GDHS型 高低溫濕熱實驗箱 Model GDHS High/Low Temperature and Damp Heat Oven