Tesco Eishin NICR 10, 20, 30, or 50 mcm (ISO 3452-3 type 1)
category: accessories
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Single or double blocks inside the protective case.
10, 20, 30, 50 mcm : indicate the thickness of chromium plate, subjected to the cracking
Flaws have linear nature, their width ‘l ‘ makes up 1/20 from the thickness of chromium-plated surface, subjected to the cracking. Brass substrate is used.