Calendar Enterprise Company produces hardware parts products can be seen in the most technically advanced hardware products are transmission oil seals, in order to respond to the extensive use of mechanical automatic transmission and maintenance of the market demand for services, Calendar Enterprise R & D and manufacturing team is committed to the oil seals and rubber factory commissioned a variety of automatic transmission piston oil seals, to provide customers with automatic transmission on the process of the solution to the problem. By matching the selection of various iron materials with the needs of oil seal and rubber manufacturers, we are able to solve the problem of multiple seals in transmission for the users, and continue to provide more high-quality, reliable, and durable transmission iron shell products.