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Sodium-based calcium-based bentonite cais rau roj hmab
Reagents siv los tiv thaiv zaj duab xis kom zoo.
Organic ua ke ntawm cov roj hmab cais tawm, stearic acid derivatives, tshwj xeeb los tiv thaiv cov neeg ua haujlwm, tshwj xeeb surfactants, ultrafine hmoov thiab lwm yam ntaub ntawv.
