The design and development of multi-specified re-axis and digitally produced hardware accessories, based on the performance experience of powder metallurgy for more than a decade. The game handle turns and the palm wheel provide long-term high-quality, stable quality products for customers, with the main products: ndsl turns, gba\sp turns, andre handles. The powder metallurgical production centre, located in changping town, east province, provides customers with various types of powder metallurgical gear with oil bearings。