[7] Liu Nanan, Huang Yan, PO blown film machine, ginger Chengde, Wang Dasheng, Wang Qingyi, Xuezeng Hua, Liu Xiaofeng. Research and development of application-specific thin film of high-yielding maize [J] Plastics Industry, 2003, plastic film blowing machine (03) . [8] The cast film production common problem, blown film machine, the river valley, 1992,43-45 [9] GB / T 9639.1-2008 plastic film and sheet impact resistance test method: Free falling dart [S] .2008 [10] GB / determination of plastic film and sheet tear resistance of T 16578.1-2008 Part 1: pants tear method [S] .2008 [11] GB / T 3960-1983 sliding friction and wear testing method [ S] .1983 [12] rolling unit rotary blowing machine [J];. Chen Shih-ming, 1999-03-07 [13] Wanghuai Liang, Hu Jingang several issues to improve the transparency of plastic packaging products, should pay attention to [J] plastic Packing, 1998, (03) three professional supply PP / PE / POF film blowing machine plastic film blowing machine, day strong machinery, film blowing machine provided by the Dongguan City, strong Machinery Co. Dongguan City-Machinery Co., Ltd. (rqjx1688.1688.com) (www.szfstjx.com) is an industry leader in Dongguan, Guangdong, film blowing machine, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. In the day strong mechanical leadership with the staff warmly welcome all inquiries negotiations to create the day strong mechanical better future.