亚洲精品一区二区丝袜图片,中文字幕被公侵犯的漂亮人妻,国产精品久久久久精品综合紧,老头猛挺进小雯的体内视频

Products Introduction：
SG-4051 Series Digital thermostat water tank is "water bath", "case temperature" boiling sterilization box "three uses of integrated products，can be used for distillation, drying, concentration and constant temperature heating chemicals, biological products, biological and chemical experiments, incubation, and the instruments were boiling disinfection purposes. This product is of high quality cold rolling plate painted shell, liner and cover are made of stainless steel，closed heater heating installations, heat loss, temperature, temperature control with digital electronic temperature control, direct reading accuracy, digital display and high precision in the use of range can be adjusted.

Features：
（1）Studio selection of quality stainless steel water tank, precision machining process, has superior heat and corrosion resistance.
（2）High precision temperature control, digital display, automatic temperature control.
（3）Thermal equilibrium time is short, temperature fluctuation, good uniformity
（4）Operating simple, safe.