螺杆式启闭机的分类是非常的广泛的。比如说，手摇式启闭机、手电两用式启闭机，侧启闭机、直连启闭机以及那些机械启闭机等等系列的启闭机。 不同的启闭机有着很多不同的功能，人们在进行选购的时候，常常容易弄混淆，以至于严重影响到使用的问题。这些都是对企业来说是很不利的 螺杆式启闭机在使用的过程中，不同的启闭机是有缆接地箱 隔离墩模具 保定电动门 铜狮子 u型槽模具 SMT贴片焊接 收费岛模具 水泥井模具着很多不同的功能的，选择合适的启闭机来进行使用，才能发挥出它最大的价值. The classification of screw hoist is very extensive. For example, a hand-held hoist, a flashlight dual purpose hoist, a side hoist, a direct hoist and a mechanical hoist and so on. Different hoist has many different functions. When people choose to buy, they often get confused, which seriously affect the use of problems. These are all bad screw type hoist in the process of use, different hoist has a lot of different functions, choose the right hoist to use, can give play to its maximum value.