There are many different styles of electric gourds. It is mainly divided into two categories, steel wire rope electric gourd and ring chain electric gourd. Among them, according to the different needs of customers, the speed of improvement is different. So what we are talking about today is that the slow group hanging electric gourd usually refers to the DHP ring chain electric gourd elevator. Its increase is slow, suitable for multiple heavy objects together. Because the speed is slow, its synchronization performance is good, and more is applied to the welding installation of steel plate warehouses and oil tanks.