Home / Standards / GBT 299-1995 GBT 299-1995 Rolling bearings — Double-row tapered roller bearings — Boundary dimensions 滚动轴承 双列圆锥滚子轴承 外形尺寸 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A