Yangzhong Kaida rubber and plastic sealing articles Co., LTD was established in 1975. It is mainly engaged in the development and production of various rubber and plastic sealing articles.

扬中市凯达橡塑密封件有限公司创建于1975年，主要从事各类橡胶、橡塑密封件的研制和生产。

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special postal articles: referring to postal date-marks, postal tongs for lead sealing and postal bags.

邮政专用品：指邮政日戳、邮政夹钳和邮袋。

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The electroless Ni plating on Fe-based powder metallurgy articles was continuously carried out with pretreatments of pore sealing by immersing in zinc stearate in vacuum and ultrasonic cleaning.

采用真空硬脂酸锌浸渍封孔及超声波清洗前处理，对铁基粉末冶金件连续化学镀镍。

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