知行 EDI 规范查询平台™
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EDIFACT EDI Release D99B
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UNH
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UNH0601
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Element
EDIFACT EDI Release D99B
UNH
0121
Message implementation guideline identification
Coded identification of the message implementation guideline, assigned by its controlling agency.
属性
必须?
Mandatory
长度
Min 1 / Max 14
