911欧美片亚洲片_免费一级无码视频在线观看_超级碰碰碰黄色网站_97免费人妻在线视频

CN

Periodicals Import

We import newspapers, periodicals, conference proceedings, yearbooks, scientific reports, guides, standards and patents, etc.

Tel: +86-10-5793 3128 Email: periodical@cepiec.com.cn Website: periodical.cepiec.com.cn

Digital Resources Import

We import digital resources such as e-journals, e-books. And microfilms, microfiches, multi-media materials, audiovisual products.

Tel: +86-10-5793 3071 Email: digital@cepiec.com.cn Website:periodical.cepiec.com.cn

Books Import

We import academic books, popular books, teaching materials, and rare books, etc.

所屬企業(yè)信息查詢郵箱:he_cha@cepiec.com.cn
lll