We have passed ISO9001:2008 Quality Mangement System Certificate, ISO 14001 Environment Mangement System Certificate, OHSAS18001 Occupational Health & Safety Mangement System Certificate, acquired the license for manufacturing special pressure Pipline equipments from AQSIQ , passed the Authentication of API , CE and became a member of first – grade supply network of State Power Corporation and China National Petroleum Corporation.We are also qualified the standard material supplier of China National Offshore Oil Corporation and China Petroleum Pipline Bureau.It was recognized by China Classification Society and admitted an associator by EnergyAhead Sources Net of China Petroleum Distribution Electronic Market. The brand “Xiaolong” is voted as “Hebei Province-level Famous Trademark”.