1.Material: stainless steel ball AISI304 316 420 430 440 carbon steel ball AISI 1010 1015 1045 1085bearing steel ball AISI521002.Grade:G10~G1000.3.HRC:58-624.DIM:0.5mm-50mmWe are specialized in the production of bearing steel balls, chrome steel balls and stainless steel balls .Our products are widely used in aviation industry,automobile industry,precision instrument,measuring appliance, motorcycle, bicycle,bearing,medical instrument and food machinery.Our advanced quality control system assures a high standard quality product characterized by excellent abrasion resistance, low breaking ratio and low application cost. Our products are well known for their high hardness, good wear resistance, and no breakage.Our dedication in providing superior quality products, services and excellent value, has earned us trust from our customers in North America, Europe and Asia, Middle East. Iran. USA.South America. Through a spirit of unity and innovation, we will continue offering outstanding products and excellent services to every customers. We sincerely hope to build up friendly and long-term cooperation relationship with the customers from all over the world.