This paper describes the shell manufacture of petal-pieces of circle shell, conical shell and head. The preassemble method and reasonable packing is also described.
本文着重介绍了分片制造的圆筒、锥筒和封头的制造工艺。本文还介绍了其预装方法以及为了防止制件在运输中变形和合理包装方法。
Baggage packing The checked baggage should be packed correctly, well locked and tied up and be able to withstand reasonable handing.
行李包装托运行李必须包装完善、锁扣完好、捆扎牢固、并能承受一定压力。
Fine works, excellent quality, fine and complete packing, reasonable price.
做工精细，质量上乘，包装精美完整，价格合理。
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