The specifications and size of the petroleum chain are covered by the accurate rolling chain standard with a short distance between the transmission, including the standard series and heavy load series of single row and multi -row. Division environment, high -reliability and continuous operation field.

By optimizing design, reasonable selection of materials, and strictly implementing specific processes, the parts of the chain are uniform, and the products have high -resistant, high resistance to fatigue performance, and high reliability.

Through the American API SPEC Q1 management system and API SPEC 7F product certification. Petroleum chain is mainly used for oil drills and oil mining operations, as well as other mechanical transmission with similar working conditions.