In order to solve the problem of construction quality instability and low efficiency in construction of sealing filler in high CFRD surface,a large trolley-type plastic filler extruder has been developed.This article discussed the large trolley-type plastic filler extruder composition,technical performance and characteristics.Engineering practice shows that the use of a large trolley-type plastic filler extruder filling with plastic filler not only ensures the construction quality,improve the working condit...