600--500

Sand blasting media , lapping ., making coated or bondedabrasive tools

40

35--40

500--425

Sand blasting media , lapping .making coated or bonded abrasivetools

46

40--45

425--355

Sand blasting media , lapping .making coated or bonded abrasivetools

54

45--50

355--300

Sand blasting media , lapping .making coated or bonded abrasivetools

60

50--60

300-250

Water jet-cutting abrasive, Sand blasting media , lapping.making coated or bonded abrasive tools

70

60--70

250--212

Water jet-cutting abrasive, Sand blasting media , lapping.making coated or bonded abrasive tools

80

70--80

212--180

Water jet-cutting abrasive , Sand blasting media , lapping.making coated or bonded abrasive tools