One-fifth the width of an average human hair! That is ultra-fine copper wire produced by a company in Gansu Province, northwest China. #ChinaTech #MadeInChina | Collector
China Xinhua News
One-fifth the width of an average human hair! That is ultra-fine copper wire produced by a company in Gansu Province, northwest China. #ChinaTech #MadeInChina
One-fifth the width of an average human hair! That is ultra-fine copper wire produced by a company in Gansu Province, northwest China. #ChinaTech #MadeInChina
China Xinhua News