中文名称：外筒材质 英文名称：outer tube material 说明：洗衣机外筒的主要材料组成。 数据类型及格式：C．．20 约束／条件：M 8．4．7．4 内筒材质 中文名称：内筒材质
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Furnace and back-end enclosure wall all adopt membrane wall structure. The outside of tube wall is insulation material and is covered with trapezoid corrugated outer protection plate.
炉膛及尾部包墙均采用膜式壁结构，管壁外侧为保温材料并罩上梯形波纹外护板。
The utility model discloses a neon motorcycle bumper which adopts transparent plastic tube material as outer part with advantages of buffering and anti-hitting.
一种霓虹摩托车保险杠，采用透明塑料管材料做外型，具有 缓冲性、耐撞击。
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