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Flange working characteristics: 1, a remote control of automatic butterfly valve, at the same time with the characteristics of the flange butterfly valve, butterfly valve can be equipped with a wide diameter; 2. Power supply is the driving energy of butterfly valve. It has a wide range of power so
Although chemical cleaning can make the appearance reach a certain degree of cleanliness and roughness, but its anchor lines are shallow and easily pollute the situation.Damage welding is to put two plastic-coated pipes directly in the non-destructive welding parts, and it can be directly welded by