Nantong Hengan Explosion-proof Communication Equipment Co., Ltd is located in the mouth of the Yangtze River opposite Shanghai. Traffic is convenient, for it is in the east entrance of Shanghai-Shanxi Expressway, there's only 100km away from Shanghai Pudong Airport. We will be very pleased to welcome your inquiry and favors.The Company is the only joint-equity enterprise which integrates the research & develop and management and owns proprietary intellectual property rights. HengAn was found in 2009 with more than 20,000 square meters areas. After years of struggling, HengAn becomes the most important and influential manufacturer of explosive-proof communication equipment based on its powerful technique, better production facility, advanced checkout equipment, at present it owns several patents of national advanced optical fibre communication technology, and applies the software copyright to become the most influential professional manufacturer of explosion-proof communication products.