NINGBO LEYUANHENGYI MECHANICAL AND ELECTRICAL TECHNOLOGY CO.LTD was found in 1998,and obtained the ISO9001 internation quality certification in 2002. LeyuanHengyi followed the 5S management system with professional,standardized,and scientific production line.LYHY is wellknown in pneumatic filed.Till now,LeyuanHengyi is a national level small and medium-sized technology-based enterprise,national level high-tech enterprise.The main product of LeyuanHengyi is quick connector, throttle valve,one-way valve,brass quick connector&two-touch fitting,metal quick connector,muffler,PA/PU tubes and other accessories. various types,convenient instalation.The fittings is widely used in the printing, welding, railway,medical,food and other mechanical equipments;well as like electronic,cars and other automation field.We have agents in Ningbo,Changzhou,Xian in China.