1.Ervin test machine 2.national standards 3.long service life 1. Description: Stainless Steel Shot is a ... produces fast cleaning speeds at reduced costs.2.Grade: S10,S20,S30,S40,S50,S60,S100,S150,S200,S300. Size: 0 ... ,1.25-1.7mm,1.4-2.0mm,1.7-3.0mm. 3. Appearance: round , shining surface4. Applications Cleaning, descaling, coating removal ...