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...Manufacture of rubber products general process description many the manufacturing facilities in united states produce pneumatic tires for automobile trucks airplanes and farm machinery however other engineered processes involved these industries are very similar differences basically consist raw material natural or synthetic used chemical additives type curing employed following is a generic facility applicable to both tire manufactured except where noted involves six principal processing steps mixing milling extrusion calendering grinding with ancillary between initially mixed several which chosen based upon desired properties final product often milled transferred an extruder it can be combined rubbers contain fabric fibers strengthening purposes typically coated using calender extruded materials then assembled into shape cured among assembly described more detail below bead building cementing marking cutting cooling green spraying during that vulcanizes crosslinks producing characte...