尖棱 meaning in Chinese

cusped edge
pien

Angular when new , this grit rapidly rounds off in use and is particularly suites for decaling applications
此种磨料新制成时，是尖棱状的，使用过程中棱角很快就被磨圆，特别适合于钢材表面去氧化皮预处理作业。
Sg / gp steel grit ： angular when new , this grit rapidly rounds off in use and is particularly suited to removing sand of casting and scaling oxide
Gp钢砂：此种磨料新制成时，是尖棱状的，使用过程中棱角很快就被磨圆，特别适合于落砂及去除氧化皮作业。