Jiangxi Jiasen grew out of the Taizhou Senyu Machinery co.,ltd ,which was established in 1983, professionally produce hydraulic tappet ,mechanical tappet, rocker arm and tensioner nearly 30 years. The company total covers an area of 55320 square meters, set up standard and modern workshops, office building and top-grade ancillary facility. The employee number over than 200.we?ve already passed the ISO9001 Quality system authentication and the TS16949 International quality system standard authentication.