Subtlety Comparison Table of Synthetic Diamond with Foreign Standards
Subtlety Comparison Table of Synthetic Diamond with Foreign Standards China ISO FEPA America ANSI B74.16-1971 Japan JIS4130-1988 Germany DIN848-1988 Russia OCT9206-80 Grit Size Subtlety Ⅰ Subtlety Ⅱ Size Grit Size Grit Size Grit Size Subtlety Size Grit Size 40/45 425/355 426 —- 425/355 D426 425/355 40/50 425/300 40/50 425/300 D426 425/355 630/500 630/500 45/50 355/300 …
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