Other companies, such as Knauf, Armstrong, and Delta, make similar products, and they often cost less than fiberglass from Owens-Corning.
其他公司，如克瑙夫，阿姆斯特朗和三角洲，使类似的产品，他们往往费用不到玻纤从欧文斯·科宁。
Other companies, such as Knauf, Armstrong, and Delta, make similar products, and they often cost less than fiberglass from Owens-Corning.
其他公司，如克瑙夫，阿姆斯特朗和三角洲，使类似的产品，他们往往费用不到玻纤从欧文斯·科宁。
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