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移山—100型推土机(原移山—80)驱动轮油封采用牛皮油封。该油封由平板、皮膜和牛皮垫圈组成,相对摩擦面是平板和牛皮接触面。红旗—100型推土机采用铜铁油封,它是
Yishan-100 bulldozer (original move -80) drive wheel oil seal with leather seal. The oil seal is composed of a flat plate, a skin membrane and a cowhide grommet. The relative friction surfaces are the flat plate and the leather contact surface. The Hongqi-100 bulldozer is made of copper-iron seals. It is