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DIFUNCTIONAL COMPOSITE FILTER MEDIUM FIBER AND PREPARATION METHOD THEREFOR 专利
申请日期: 2018-12-27, 公开日期: 2018-12-27
作者:  Wang D(王栋);  Peng Y(彭悦);  Han KH(韩奎华);  Lu CM(路春美);  Niu SL(牛胜利)
收藏  |  浏览/下载:14/0  |  提交时间:2020/01/04
Rack-and-pinion type bidirectional stretch test device, has guide devices diagonally arranged, where one of devices is located between synchronous stretching device and another stretching device, and upper mold base fixed on press. 专利
申请日期: 2018-01-01, 公开日期: 2018-04-20
作者:  CHANG Y HAN S LI X WANG N WANG B WA
收藏  |  浏览/下载:2/0  |  提交时间:2019/12/02
Pipeline natural gas pressure regulating system, has hot end control valve connected with temperature regulating device, and vortex tube connected with adjusting device that reduces pressure to delivery pressure to city pipe network. 专利
申请日期: 2018-01-01, 公开日期: 2018-04-27
作者:  ZHANG B GUO X HAN Y
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/02


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