Specialty contractors' survey has been carried out and the reinforcing bar subcontractor A's curriculum vitae has been obtained. Statistical analysis of 650 contracts information for the past ten years is conducted. Although subcontractor A is comparatively big, and so the analysis results can not be generalized, many interesting points are made out. The authors have tried to examine such analysis as following: the major client's features, the time series transition of unit prices, the merit of quantity in dealings, the seasonal fluctuation of work load, etc.
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