Blown tubular film extrusion is a common method of film manufacturing industry, hdpe, ldpe and lldpe are the most common resins material in blown film extrusion industry. Flexipack makes blown tubular film in large fold diameter up to 4, 000 millimeter (13 feet), in its tubular shape, it can be used for industry packaging, like flexitank for oil, wine and many other liquid transportation or for temporary storage; or sealed one end to make jumbo (bulk) film bag as liner for barrel container to anti-leakage. By cutting into up to 8, 000-millimeter-width (26 feet) sheet, the blown film will be most commonly and widely used. In agriculture field, greenhouse is one of the largest plastic film consumption, and it does of landscape film, crop forcing film, silage film. In wooden field, as a wrapper to keep the lumber away from moisture while keep clear to see their appearance., , specification, * thickness: 115 micron to 250 micron (4.5 mil to 9.8 mil), * fold diameter: up to 4, 000 mm (13 feet), , * shipping status: on roll, * weight and length per r oll: as required, 860 kg (1, 900 lbs) in normal, * extrusion method: multilayer co-extrusion