Memuat
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author
N C Balchin
Dr Nigel C. Balchin was a Senior Lecturer in the School of Welding Technology at TWI where he worked on a wide range of courses before moving into the area of producing training aids and open learn...lihat lebih banyakDr Nigel C. Balchin was a Senior Lecturer in the School of Welding Technology at TWI where he worked on a wide range of courses before moving into the area of producing training aids and open learning courses.lihat lebih sedikit