Contractual dispute between Shiyan-based Baiqiang Hexiang Real Estate Development Co., Ltd, Shiyan-based Ronghua Dongfeng Motor Franchise Co., Ltd, Shiyan Huize Real Estate Development Co., Ltd, Shiyan-based Aolian Materials Trading Co., Ltd, Shiyan Branch of China Construction Bank Corporation, Shiyan-based Kuoyuan Technology Industry and Trade Co., Ltd and Li Decai