Valves have different requirements according to their types and uses, mainly including sealing, strength, adjustment, circulation, opening and closing performance. Automotive valve grinding machine plays an important role in valves manufacturing process. When designing and selecting a valve, in addi

The engine valve seats and valves are of great importance. They play an imperative role in the mechanical industry. The valve seats are used to manage the heat of the valves. Generally, the valve seats conduct heat to the minimum.

The Spring Festival refers to the traditional Chinese New Year. Chinese have been celebrating the Spring Festival for more than 4,000 years. In modern times, the Chinese New Year is scheduled to be on the first day of the first lunar month.