DAIHAN® Gas Exchangeable Precise Vacuum Drying Oven “OV”, 20·30·70 lit, 10~750 mmhg, 200℃ With Highly Safety View Window, 2 Al-Shelf, digital PID control, Superior Temp & Vacuum Accuracy, Excellent Thermal Conductivity 가스 치환 정밀 진공 건조기/오븐, 고정밀 디지털 PID DAIHAN® Gas Exchangeable Precise Vacuum Drying Oven “OV”, 20·30·70 lit, 10~750 mmhg, 200℃ With Highly Safety View Window, 2 Al-Shelf, digital PID control, Superior Temp & Vacuum Accuracy, Excellent Thermal Conductivity 가스 치환 정밀 진공 건조기/오븐, 고정밀 디지털 PID DAIHAN® Gas Exchangeable Precise Vacuum Drying Oven “OV”, 20·30·70 lit, 10~750 mmhg, 200℃ With Highly Safety View Window, 2 Al-Shelf, digital PID control, Superior Temp & Vacuum Accuracy, Excellent Thermal Conductivity 가스 치환 정밀 진공 건조기/오븐, 고정밀 디지털 PID