What is the crown crane that can't walk north and south?

Poor contact. When the calf of the electric hoist touches the connector of the line, if it stops suddenly, it will seriously damage the motor. The crown block cannot move north and south because of poor contact. Dongguan Taiguan Hoisting Machinery Equipment Co., Ltd. is a manufacturer 18 specializing in intelligent manufacturing of R&D and European cranes. Its main products include double-beam crane, single-beam crane, crane and so on. It has an independent industrial park and three branches with a total workshop area of 60,000 square meters.