2型非金属嵌件六角锁紧螺母 9和12级          
          Prevailing Torque Type Hexagon Nuts(with Non-metallic Insert),style 2,classes 9 And 12 
                      
          2型 非金属嵌件六角锁紧螺母 性能等级:9和12级          
          Prevailing Torque Type Hexagon Nuts (with Non-Metallic Insert), Style 2 - Property Classes 9 and 12 
                      
          六角尼龙锁紧螺母          
          Prevailing Torque Type Hexagon Nuts with Non-metallic Insert