For highly colored wood such as mahogany and red cedar, oil and alcohol stains sealer of the most effective.
对于着色性很强的木料，如桃花心木和红杉，油性和醇性污渍封闭底漆最有效。
Both sealer and packer are made of said oil-absorbing expansion material as well as oil and water-absorbing expansion material.
此外还公开了由上述吸油膨胀材料和吸油吸水膨胀材料制成的密封件和封隔器。
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