By Cassell Bryan-LowLONDON, July 24 (Reuters) - As U.S. defence companies descended on Britain's Farnborough Airshow this week hoping to tap Europe's military spending boom, they encountered increased concern among customers about reliance on American suppliers. European governments are demanding greater control over defence equipment, more local production ‌and a bigger share of industrial benefits. In response, U.S. arms makers are expanding manufacturing in Europe, forming joint ventures and offering more tailored ‌products. It comes shortly after an announcement about plans to produce an Army Tactical Missile System (ATACMS) with Germany's Rheinmetall. RTX's Raytheon also recently announced it had partnered with European firms to increase Stinger missile production, including assembly in the Netherlands.