浙江省上虞市东鑫汽车配件制造有限公司（原浙江玉环三友气门厂），是生产汽车气门的专业制造厂，公司拥有一支高素质员工队伍，有着多年从事汽车气门开发、生产、服务的丰富经验。公司工艺先进、装备精良、数控车床、数控磨床等各类加工、检测设备。具磨擦焊接和镀铬等先进生产工艺。
公司生产的产品主要为国内外各种汽车发动机、内燃机生产企业、社会维修提供配套和服务。
Zhejiang Shang Yu Dong Xin Automobile Parts Manufacture Co., Ltd(Former Zhejiang Yu Huan San You Engine Valve Factory Co., Ltd)is a professional manufacturing factory which produces automobile valves. The company has a team of high-quality employes. It has rich experience of the development, production and service of automobile valves.The company has advanced technology,superior equipment and various processing and checkout equipment,such as numerical-controlled lathes and grinders and so on .It has vanguard technology of friction welding and chroming and so on.
The products of the company mainly provide mating parts and service of various automotiv engines,internal combustion engines at home and abroad.