On June 26 2009 LYC produced extra large size spherical rollers. These rollers are solid and symmetric high precision products with the diameter of 150mm height of 180mm and weight of 23.4kg for each. The precision is up to the level of P5. This achievement indicate that LYC has stepped on a new stage on product research and development manufacturing and processing which also established the solid base for expansion the market share of high grade products.