Da Haigongsi

The company specializes in the production of Ethylene-tetrafluoroethane (F4), because of its excellent dielectric properties of corrosion and chemical resistance (except under high temperature and the element of the state by melting metal,), non-absorbent, non-stick, conductivity, a low coefficient of friction and not aging properties, and is widely used in chemical, petroleum, textile, pharmaceutical, metallurgy, machinery, electronics,...

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