polyesterol聚酯多元醇
polyestern.聚酯;涤纶
polyester fibre sewing thread绦纶缝纫线
polyester pre-oriented yarn涤纶POY
polyester with low melt point低熔点聚酯
polyester photosensitive film聚酯光敏胶片
polyester cotton blended yarn涤棉混纺纱
polyester-type polyacrylate聚酯型聚丙烯酸酯
polyester amino baking enamel聚酯氨基烘漆
polyester production waste gas聚酯废气