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请各位大侠继续给找找CEMA第7版哈，如果有第6版的也可以，但不需要第5版或之前的版本，谢谢。
CEMA, Belt Conveyors for Bulk Materials, 7th Ed. Second Printing, English
7th ed. Belt Conveyors for Bulk Materials, Second Printing
English Version, 815 pages
August 2020

资料还没找到，请大家继续给找一下CMEA第7版的哈，第6版的也行，但不要第5版或之前的，谢谢。
CEMA, Belt Conveyors for Bulk Materials, 7th Ed. Second Printing, English
7th ed. Belt Conveyors for Bulk Materials, Second Printing
English Version, 815 pages
August 2020
Hard Copy Book, also available as a PDF

已经撤销悬赏，并返还论坛币。