• 1. casing sub: 套管异径接头 | 套管接头
• 2. HDD Casing No Sub-category: 外置硬盘盒

• 1.According to actual needs. there are circulating sub with casing thread and circulating sub with union thread.
  根据需要可分为套管螺纹循环接头和油壬螺纹循环接头(全规格)。
  dict.yoduao.com

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