Black lead meaning in hindi

How to pronounce Black lead
Other : कृष्ण सीस
ग्रैफाइट उ:   इसमें ग्रैफाइट के काले रेशे दिखाई दे रहे हैं। ब्लैक लेड लिखिज
Examples
Usage of Black lead in sentences

The word can be used as noun in hindi and have more than one meaning. 
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