Correct Answer:
Option C - Steel band or band chain–The steel band consists of a long narrow strip of blue steel, of uniform width of 12 to 16 mm and thickness of 0.3 to 0.6 mm. Metric steel bands are available in lengths of 20 or 30 m
C. Steel band or band chain–The steel band consists of a long narrow strip of blue steel, of uniform width of 12 to 16 mm and thickness of 0.3 to 0.6 mm. Metric steel bands are available in lengths of 20 or 30 m