Oxygen Acetylene Welding (Easily Understand) हिन्दी
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8 سال پیش
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In this video we will
In this video we will discuss about What is Oxygen Acetylene welding.we will also discuss its principle of operation of this welding.
8 سال پیش
در تاریخ 1395/10/25 منتشر شده
است.
192,960
بـار بازدید شده