Henan Shunying New Energy Co., Ltd. is a comprehensive manufacturing and trading company located in zhengzhou, China. We are mainly doing rubber expansion joint, dismantling joint, expansion bellows, compensator, flange and pipe fittings. We have been carrying out a strict quality management system in accordance with ISO9001 requirements. All kinds of products are regularly conducted pressure-tight blasting test, longitudinal shrinkage rate test, quick stress crack resistance test, tensile test and melt index test, so as to ensure the quality of products totally reach the relevant standards from raw materials to finished products.