Industrial oxygen generator is an automatic equipment that uses zeolite molecular sieve as the adsorbent and uses the principle of pressure adsorption and decompression desorption to adsorb and release oxygen from the air, thereby separating oxygen. Zeolite molecular sieve is a kind of spherical gra

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The fire extinguishing ball device is composed of a foam shell, a dry powder driving device and an ABC dry powder fire extinguishing agent. The external part of the fire extinguishing ball device is wound with a cross-shaped lead. When the external lead wire is ignited, the driving medium is activat

Ball valveBall valves are evolved from plug valves. It has the same 90° rotation action, except that the plug body is a sphere with a circular through hole or passage through its axis. The ratio of the spherical surface to the passage opening should be such that when the ball is rotated by 90°, all