CLASS-15 || Lubricant and Coolant || स्नेहक और शीतलक || Difference between lubricant and coolant

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Thanks sir

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Thank sir

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Sir g very gud ek vedio reamer pe bhi bna dijye detail me

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Already bna hai Chk

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Nice vedio Bhai

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Thnks bhai

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Surveyer ITI ka apprentice aur vacancy ho to batao

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Bhai mrac trade k bhi video bana dijiyay

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Aur.kaha.milega.vidio

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Refrigerator aur air conditioners k