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nature : Valve Trays of gas dispersion components. Trays can float, with the gas flow to changes in its opening degrees. Valve many shapes, circular valve, such as strip the angle valve. Domestic currently using the circular valve. The most common type of Formula One, the existing domestic ministerial standards (JB1118). Standard Valve materials can be selected carbon steel, stainless steel or acid-proof steel; Light Valve thickness of 1.5mm and weighing about 25g, heavy valve thickness of 2mm and weighing about disc.
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