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                    • 防縮孔劑BO

                      防縮孔劑BO化學名:琥珀酸脂共聚合物防縮孔劑用于防止涂膜上構成不規則的、有如碗狀的、小的洼陷的弊端,使涂膜趨于平整的助劑現在聯系

                    噗嗤噗嗤巨物进进出出
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