Blown film production is generally divided into single machine and multi-layer co-extrusion production methods, and by product is also divided into different products such as agricultural film (greenhouse film), packaging film, bag making film and other production. Multi-layer co-extrusion blown film installation solutions Multi-layer co-extrusion film blowing refers to the production method of co-extrusion of multiple extruders with more than 2 layers, which is also divided into two ways: up-blowing and down-blowing, down-blowing is common for packaging film and up-blowing is the main method
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