different inside diameters coupling ,5pcs 17.20.25.30.35mm

Taian Haiyu Machinery Co., Ltd. is located at the foot of famous Mountain Tai in the north development zone of Taian City which is between spring town - Jinan and the hometown of Confucius - Qufu. We enjoy convenient transportation and Taian City is at the junction of Beijing-Fuzhou Highway and Beijing-Shanghai Highway. Taian Haiyu Machinery Co., Ltd. is a modern technological company combing research, production, sale and service. We have a number of engineers working on designing and producing engine testing equipment and some sophisticated staff members specialized in computer software and hardware design. In recent years, we have cooperated with research institutions of universities. Our company succeeds in researching new series of HY injection pump test benches and injector test benches. Functions of the equipment have reached the internationally advanced level. We fully meet the needs of customers. Besides, we can also design particular testing benches according to customers' requests. In order to meet the requirements of lowering exhaust in diesel engine field and achieve European III standard, our company researches and develops common rail system test benches which have excellent functions and high accuracy. Our test benches have been widely used by internal engine industry and are exported to more than 30 countries and regions, including Asia, Africa and America. Our company also has long-term cooperation with Guanghua Gas and imports SMC gas meter boxes, stainless steel meter boxes, cold plates and other metal products. We adhere to the principle of "sincere cooperation" and warmly welcome customers from all over the world to visit us. We hope that you can work together with us for a beautiful future.