Thrust disc is made of steel and thrust bearing bushing surface is made of plastic bushing.
推力盘为钢制材料制成，推力轴承瓦面为塑料瓦材料制成。
The basic units of post seal structures were sorted into adhesive, rubber, lead bushing, plastic cover and lead post pillar, and each se aling unit was analyzed.
研究了把密封结构基本单元归结为胶粘剂、橡胶、铅套和塑料电池盖、极柱等，并分别做了简要分析；
A plurality of recesses are formed on the outer circumference of the magnet; the magnet and the bushing are integrated by one-shot plastic forming, and the bushing is of plastic.
在磁铁的外圆周面上形成多个凹槽，磁铁和衬套一次注塑成型、形成一体，衬套由塑料制成。
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