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

Products Introduction：
SG-4054 series Precision CNC constant temperature water bath is mainly used for laboratory distillation, drying, concentration, and temperature and stain chemicals or biological products, also can be used for constant temperature heating and other tests, biological, genetic, virus, fisheries, environmental protection , medicine, health, laboratory, analysis room, an indispensable tool for education and scientific research。

Features：
1、Digital resolution of 0.1 ℃, self-control。
2、Zero device with temperature, the temperature accuracy ± 0.3 ℃。
3、With over-temperature alarm。
4、Studio use high quality stainless steel water tank, precision machining process, has superior heat and corrosion resistance。
5、High precision temperature control, digital display, automatic temperature control。
6、Thermal equilibrium time is short, temperature fluctuation, good uniformity
7、Simple, safe。