full intro of welding and Oxy-Acetylene welding/वेल्डिंग और ऑक्सी एसिटिलीन वेल्डिंग का पूरा परिचय
Channel: V-karN Classes
Date: 30/07/2020

hey friends its vkarn classes another interesting topic about welding introduction in which describe the its definition,principle,classification.and also describe about gas welding type Oxy acetylene welding its use and advantages and disadvantages.
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