求翻译：這個HS按照是按照上次出貨文件的提供給你們的貨代了, 如果現在要修改需要RMB500改單費用, 這次可以不修改嗎? 以後出貨按照這個是什么意思？

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In accordance with the HS in accordance with the last shipment documents made available to you by the cargo, if we need to be changed to RMB 500 single costs, this can not be revised? In accordance with the goods after this

This HS according to was defers to previous time produces goods document provision for yours goods generation, if the present must revise needs RMB500 to change the charge for documents to use, this time might not revise? Later will produce goods according to this

The HS is as generations last shipping documents provided to you, if you now need to modify RMB500 fee, this can not modify it? Later shipments in accordance with the

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