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FC-DHF2是一种对镀锌板及合金镀锌板做后处理的含六价铬的处理剂。它可增加金属的抗腐蚀能力。适用于喷淋型或浸渍型工艺，也可用于辊涂等。
FC-DHF2 is a kind of treatment agent containing hexavalent chromium for galvanized sheet and alloy galvanized sheet processing. It can increase corrosion resistance of the metal. Suitable for spraying or dipping process, can also be used for roller.