Long durability and low consumption: SG steel grits havefewer interior flaws.They are made of tempered martensite and can resist impulses.A long durability is ensured.

• 钢砂寿命长，消耗量少：SG钢砂内部缺陷少，金相组织为回火马氏体所组成，耐冲击性强，寿命长。