Piping Engineering : how to install spring supports for pipelines at site
GOURI SANKAR SAMANTA
0:00 / 0:00
Piping Engineering : how to install spring supports for pipelines at site
9 033 просмотра · 6 лет назад
GOURI SANKAR SAMANTA
24 тыс. подписчиков
9 033 просмотра · 6 лет назад
G. S. Samanta : Engineering & Educational
