日升公司是集科研商贸为一体的生产型专业制造钢球的企业，主要生产1~25mm高精度微型不锈钢球（420、440、304、316)，轴承钢球，碳钢球，铜球，飞碟球。

The company is an enterprise specializing in scientific research and commerce. It mainly produces 1mm-25mm high precision micro stainless steel(420,440,304,316) balls bearing steel ball, Carbon steel ball, Copper ball and Flying saucer ball and so on.