Book sewing machine is one kind of book binding machines, by which the gathered signatures in paginal order from the collecting machine can be sewed to from book blocks.
锁线机是将配页机按页码顺
册的书帖，通过锁线制书芯的机械。
的Book sewing machine is one kind of book binding machines, by which the gathered signatures in paginal order from the collecting machine can be sewed to from book blocks.
锁线机是将配页机按页码顺册的书帖，通过锁线制书芯的机械。
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