NK4 Warm NK4 Warm NK4 Warm insulated industrial door 36' x 62' Finland NK4 Warm NK4 Hangar door 54' x 18' Netherlands NK4 Warm NK4 Warm Aircraft hangar doors 160' x 31' and 151' x 31' Finland NK4 Warm NK4 Warm Hangar Door Size 262' x 74' Kazakhstan NK4 Warm Industrial door 49' x 44' Germany NK4 Warm Industrial door 28' x 38' United Arab Emirates NK4 Warm Hangar door 43' x 20' Sweden NK4 Warm Industrial doors 3 pcs 33' x 30' Finland NK4 Warm Shipyard door 62' x 52' Finland NK4 Warm NK4 Warm Hangar doors 2 pcs 113' x 28' Russia NK4 Warm Champion Door NK4 Warm Arctic 115' x 34' Russia NK4 Warm NK4 Warm Helicopter hangar door 51' x 28' Norway NK4 Warm NK4 Warm 75' x 23' Russia NK4 Warm NK4 Warm mine door Finland NK4 Warm NK4 Warm 52' x 26' Russia NK4 Warm NK4 Warm Hangar Door 92' x 31' Norway NK4 Warm NK4 Warm Hangar Door 256' x 54' Kazakhstan NK4 Warm NK4 Warm 30' x 20' Finland NK4 Warm NK4 Warm 105' x 23'/33' Sweden
