supply of existing shield tunnel

In recent years, domestic Shield Tunneling Machine joysticks boring machine enterprises are growing stronger by joint venture production contract, technology import, independent R&D and mergers and acquisitions, around 30 excellent shield tunnel boring machine producers have established,
As for the supply situation of existing shield tunnel boring machine enterprises, production capacity of most enterprises is about 10 units to 20 units, therefore, supply capacity of domestic miniature joystick

enterprises is at least 200 units at least. With rising number of domestic various tunneling projects, more enterprises will enter this industry, so product supply capacity will continue to grow.