montan n wax褐煤蜡
MONTAN ACID WAX褐煤酸蜡
Specifications of montan wax褐煤蜡技术条件
crude e montan wax粗褐煤蜡
crude montan wax粗褐煤蜡
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bleached montan wax蒙旦蜡
N(名词) a hard wax obtained from lignite and peat, varying in colour from white to dark brown. It is used in polishes and candles 褐煤蜡