硅烷偶联剂 KH550 KH560 KH570塑料添加剂涂料粘合剂

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Jinan seok chemical co. Ltd

Address:4th floor of the new material trading centre, shandong jinan, tianbashi district, shandong province

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硅烷偶联剂 KH550 KH560 KH570塑料添加剂 涂料粘合剂