The D -steel wire rope electric gourd is also called CD1 steel wire rope electric gourd. It is a gourd that was born earlier. It is characterized by fast improvement. This gourd is relatively easy to remember, basically 8m/min. Its volume is relatively large. With the increase of the rise height, the thickness of the wire rope and the size of the roller will change. CD1 is a single -speed type in popular, and another model is MD1 dual -speed. As the name suggests, it has two speeds. Welcome to consult Ri Zhi about selection issues.