Although harder than GP steel grit, GL also loses its sharp edges during shotblasting and is particularly suited to descaling and surface preparation applications.

• 尽管此类钢砂的硬度比GP钢砂要高一些，但在喷砂过程中仍会失去棱角，特别适合于钢材表面驱除氧化皮预处理作业。