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აღწერეთ სარქველების კლასიფიკაცია და სტანდარტები

Brass is a common alloy composed mainly of copper and zinc. The different brass raw materials affect different changes to brass-made utensils. Today, we are going to discuss different raw materials of brass.

What’s the difference of DZR valves and Bronze valves? From the chemical composition ,physical properties,temperature and working pressure to make the distinction.

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