² 精准温度调节控制器，可以准确设定需要的温度。

² 凹嵌式开关、电源，增加操作的安全性。

² 高透的观察窗配备可移动的放大镜，清晰的判断每个漏孔的位置。

² 可移动式上盖，靠自身的重量，阻碍与高温的距离。

²  Accurate temperature control controller, can accurately set the required temperature

²  Concave switch, power supply, increase the safety of operation.

²  The high-permeable observation window is equipped with a movable magnifying glass to clearly determine the   location of each leak.

²   upper cover, by its own weight, hinder the distance from high temperature.