Luoyang Yusion Industrial Co.,Ltd. is a professional manufacturer in China that specialized in AISI S-2 Tool(Rockbit) Ball & AISI 52100 Chrome Steel Ball ranging from 9.525mm to 150mm with grade from G10 to G600 since 1993.The chrome steel balls are mainly applied for yaw & pitch bearing.The S-2 Tool(Rockbit) Balls most frequently used in oil field equipment and offshore drilling operations.
