色翁荡息又大又硬又粗又爽小玲_欧美《熟妇的荡欲》在线观看_日本a√在线观看_欧美大片

Introduction：
SG-7803 series of biochemical incubator thermostat with two-way cooling and heating system, temperature control, a plant, biological, microbial, genetic, virus, medical, environmental protection, scientific research, education sector essential laboratory equipment, widely used in low temperature constant temperature test, culture test, environmental testing, etc. structure of imported steel liner, insulating glass, thermal insulation material used poly resin foam safety, insulation and light weight, the overall aesthetic appearance.。the control system adopts microcomputer control, digital display and high precision and accurate intuitive, convenient and reliable temperature control. Closed compressor, refrigeration, low noise. box made of high quality fan unit, forced air convection, temperature distribution more uniform。the product is suitable for bacteria, fungi, microbes, cells and the c*tion and preservation, plant c*tion, breeding experiment, enzymology, enzyme engineering, biological products, pharmaceuticals, vaccines, blood and the preservation and testing of specimens. Genetic engineering, medicine, agriculture, forestry, environmental science, animal husbandry, aquatic production and scientific research departments ideal test equipment.
 
Features：
1、The enclosure using polyurethane foam insulation foams, external heat （cold） source has strong anti-interference ability.
2、Cavity produced by plastic molding process, strong corrosion resistance。
3、All-glass-type container, to facilitate observation of the cavity。
4、To protect refrigeration compressors, control circuit design of power protection and 4 minutes delay function。
5、Automatic temperature control, using digital visual red LED display clearly。