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本期发表了王树平等几位同志的几项发明和革新,或许会对同行们有一定的启发和参考作用。读者如需要了解详细情况或索要有关图纸、样品,请径与作者本人联系。我们在文章后面都注上了作者单位的邮政编码。
This issue of Wang Shu-ping several comrades several inventions and innovations, may have some inspiration and reference for colleagues. Readers for more information or to ask for drawings, samples, please contact with the author. We post the postal code of the author at the end of the article.