General Studies · Marking Tools
फाइल की हुई या मशीन से तैयार सतहों पर किस प्रकार के मार्किंग मीडिया का उपयोग किया जाता है?
- 1सेल्युलोज लैकर
- 2मार्किंग ब्लू
- 3प्रुशियन ब्लू✓
- 4कॉपर सल्फेट
सही उत्तर देखें
प्रुशियन ब्लू
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