Environmental protection dust removal equipment is a synthetic material, natural fiber or glass fiber woven cloth or felt.
环保除尘设备的滤料即是合成纤维、天然纤维或玻璃纤维织成的布或毡。
The jacket is made of rubber, plastic or synthetic material that is impervious to moisture and dust.
这件夹克是由橡胶、塑料或合成材料不受水分和灰尘。
The jacket is made of rubber, plastic or synthetic material that is impervious to moisture and dust.
这件夹克是由橡胶、塑料或合成材料不受水分和灰尘。
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