[1] Zhang, Wu Yuedong, Yong Jinbing, Study on bearing characteristics of plastic casing pile composite foundation under embankment load [J]. Journal of Geotechnical Engineering.2010 (www.lunwen36524.coms2) [2] Xu Pingyuan. Application of plastic casing pile in soft foundation of Shenjiahu-Hangzhou Expressway [J]. Subgrade engineering. 2009 (05) [3] Xiong Xingfu CoCo Lee. Present situation analysis and recyclable design of supermarket shopping bags [J]. Packaging engineering. Liu Jing. Harm of domestic plastic waste and its management policy evaluation [J]. Journal of Environment and Health. Wang Kun. Present situation and development direction of industrial solid waste in China [J]. Management and technology of small and medium-sized enterprises (the first issue). Discussion on the management system of municipal solid waste in China [J]. Study on urban development. [7] Han Ju, Wang Xiaoqiu, 2002(02). Special-shaped folding carton design based on Pro/ENGINEER [J]. Packaging engineering. Zhao, Zang Yijuan. Development of engineering drawing model base system based on Pro/ENGINEER [J]. Electromechanical engineering technology. 20 10(06) from: 36524 paper net [9] Shi Xiaoqing, Zhao Zhiming, Mou, Huang Jinqiang. Structural design of injection blow mold for plastic packaging bottles [J]. Modern plastics.