搜索 - 科创

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为了满足各位创友对航空航天方面的动力问题凤翎工业将采用集成化&可行性的成本压缩技术为各位梦想制作火箭的创友们提供预计售价为100RMB左右的制式部分复用发动机套件（壳体复用）（该型发动机沿用了凤翎上一...

售价：192元/套 YBF2300点火器一套+10根YD30电子点火头联系方式QQ：3131345127微信：18875075860视频地址：XXXXXXXXXXXXXXXXXXXXXXXXXXXX...

前几天别人家刷墙熬胶，旁边袋子上写着聚乙烯醇 PVA。心想应该和PVC差不多吧，便用一次性杯子舀了杯。回家直接加水泥和了一起，外加石棉瓦中的纤维，在PVC管子上直接做喷口，不知是否可行？

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