to prefabricate

To prefabricate box-girder is important in concrete cable-stayed bridge construction, it affects directly the main bridge construction of assembly progress and packing accuracy.

The scene each kind of inspection well lap and the blind ditch lap in prefabricate in the field to prefabricate, truck transportation, crane loading and unloading, artificial auxiliary.

To investigate a new type of low stress precision cropping system, it is necessary to obtain the feasibility that the heat stress was used to prefabricate the ideal crack of V-shaped notch tip.