grading tool meaning in English

(测定磨具硬度的工具) 手锥
分级工具

Abundant grading tools satisfy different needs
推档工具丰富多样，满足工艺师个性要求。
Rolls machined from high - grade tool steel , which has been treated to a hardness of over 60 rockwell c and hard chromed , precision ground as well as polished to a mirror surface
辊由高级工具钢制成，经过热处理，洛氏硬度超过60 ，并经镀铬和镜面抛光处理。
From basic blades made from high grade tool steel via laser welding technology to blace geometry ? what counts for us is quality and an optimum price / performance ratio
从基本的刀刃制造到高级的激光焊接技术，再到刀刃几何原理我们都确保其高质量和高性能。
J53 - 1600c model , j53 - 1000b model and j53 - 630a model press equipments manufactured for forging line of wendeng weili top grade tools co . , ltd . by our company - the largest tool manufacturing base in asia
我公司生产的j53 - 1600c型j53 - 1000b型j53 - 630a型压力机装备在文登威力高档工具有限公司锻造生产线亚洲最大的工具生产基地