The author investigated the signs of the China Standard Serial Numbering in 516 sci-tech periodicals published in 2005.
对2005年出版的516种科技期刊的中国标准连续出版物号标志情况进行了调查。
The main products of enterprise include: Rotary numbering machine. Flat type numbering machine, CODE39 bar numbering machine, automatic numbering machine, metal serial number plane etc. Series.
企业主要产品包括：轮转号码机，平版号码机、CODE39型条形号码机、自动号码机、金属编号机等系列。
The main products of enterprise include: Rotary numbering machine. Flat type numbering machine, CODE39 bar numbering machine, automatic numbering machine, metal serial number plane etc. Series.
企业主要产品包括：轮转号码机，平版号码机、CODE39型条形号码机、自动号码机、金属编号机等系列。
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