In productive process of paper based asphalt felt, the amount of filling material added has direct effect on physical properties of final products.
石油沥青纸胎油毡生产过程中，填充料加入量的多少会直接影响到油毡产品的各项物理性能。
In productive process of paper based asphalt felt, the amount of filling material added has direct effect on physical properties of final products.
石油沥青纸胎油毡生产过程中，填充料加入量的多少会直接影响到油毡产品的各项物理性能。
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