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Hezhen bentonite powder reliable binding fluxing agent optimizing pellet quality smelting efficiency slag treatment in ferrous non ferrous metallurgical production processes

Hezhen kaolin powder additive improving whiteness opacity printability and surface smoothness of coated paper uncoated paper packaging paper and high gloss paper

Hezhen tourmaline powder functionalized ultrafine tourmaline with polarization resistance wearability chemical inertness for plastic strengthening rubber modification coating additive