Width 4.1 specifications and deviations polyethylene film thickness should meet the requirements, uniform film thickness, longitudinal, transverse thickness deviation small, single-host blowing machine, and the deviation is more evenly distributed. [7] 4.2 good appearance requirements plastics polyethylene film, small film blowing machine, no fish eye, blowing machine, the film surface is smooth, wrinkle-free, wind-blown film loop, no bubbles, burst phenomenon, no obvious black spots, impurities, are not allowed to hang slash and silk pattern exists. [7] 1. The simple blown film, only to sell the film to the end product, then the choice of equipment is wider adaptability, from the narrowest to the widest width width to meet the needs as possible. But also to take care of the equipment can produce the kind of film processing products (such as: high-pressure polyethylene film, a low-pressure polyethylene film, polypropylene film, etc.). 2. blown even bag, blown good finished film only the first step, the follow-up to make a film bag siren for the end product, this is the choice of machine should end the film bag machine specifications to select. Film blowing machine, day strong machinery, small blowing machine provided by the Dongguan City Machinery Co., Ltd. strong. 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.