... 油浸 Oil stained 油斑 Oil potted 油迹 Oil trace ...
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Alloy steel construction, welded with bellow, potted by adhesive inside, oil-proof, waterproof and anti-corrosive gas and medium making it suitable for all kinds of environments.
合金钢材料，波纹管焊接，内部灌胶密封，防油、防水、耐腐蚀，可适用于各种环境。
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