- non-standard fastener
- 非標準: off-standard; nonstandard
- 緊固件: fastener; fastening piece
- 標準緊固件: standard fasteners
- 制造標準緊固件成套設備: complete equipment for making standard fastener
- 緊固件: fasteners; fastening details; fastening piece; fastenings; screws; tightness products
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