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O-Ring Recognizer

Different materials have different resiliencies. O-Ring recogniser is designed to recognize 4 kinds of rubber: 1. EPDM 70 2. NBR 70 3. FFKM 75 4. FKM 75 These O-rings are usually in black and not easily recognised, the pen will bounce back to hte material mark after hitting the o-ring.

Color:
  • Recogniser
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