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Very knowlejebal vedio

Thank you so much

Thank you

Thank you for information

Good sir

Good

Nice information sir

What is defferent between in NRV & butterfly Valve

Stainless steel vs iron dono me hard kaun sa hai pipe ke liye jisme 8mm-10 mm hol ho ya dusra meteriya bataye hard ke liye

Copper nickel aur inconel ke bare video bnaye

Bhai IBR line ka bhi Video bnao

Thanks sir Aap Kuwait me ho kya

Plz explain P91 in detail

What is defferent between in Ball valves and global valves