您要查找的是不是：
- hollw vivet 管形铆钉
- iron vivet with round head 圆头铁铆钉
- hollw 中空
- hollw conveying shaft 空心传动轴
- tubular vivet 管形铆钉
- hollow vivet 管形铆钉
- hollw track conveyer 管形轨道输送机
- Vivet 维韦
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
