An anti-counterfeit system and method for passive radio frequency label are disclosed, the system includes: the anti-counterfeit module of label, by the user interface, the production owner adopts the general international coding scheme to convert the true EPC code into the fake EPC code and the fak.....
[Detail]
一种超声波换能器驱动器,所述驱动器具有大磁致伸缩元件、用于在机械压力下保持大磁致伸缩元件的紧固件、用于提供偏磁场的第一磁场产生器、用于提供磁性驱动场的第二磁场产生器、以及用于在磁致伸缩元件中引导磁场通道的磁性回路。用于接合装置的超声波换能器具有:在较小端处具有接合工具的角状部以及邻接至其上的安装桶状部。所述驱动器连接到角状部的较大端。
[Detail]
The present invention relates to a brassiere, in particular to a nano-antibacterial breathable bra and a manufacturing method of a brass cover body containing antibacterial nano porous breathable bra cup, the cup of the base surface of the base body and antibacterial nanoparticles are uniformly dist.....
[Detail]
本发明提供一种水基嵌段聚氨酯及其制备方法,其特征在于它含有由用于形成软段相的(A)组组分的反应产物与用于形成硬段相的(B)组组分的反应产物所形成的预聚物在水中继续反应所得的聚合物。(A):催化剂0.01-0.2重量份;聚醚或聚酯二元醇30-100重量份;芳香族或脂肪族二异氰酸酯5-30重量份;扩链剂短链脂肪族二元醇2-10重量份;(B):芳香族二异氰酸酯5-20重量份;交联剂三羟基多元醇0.1-2.0重量份;扩链剂短链脂肪族二元醇2-10重量份;含羧基的短链脂肪族二元醇2-10重量份;短链脂肪族有机叔胺类中和剂2-10重量份。本发明还提供通过施用所述聚氨酯所得的具有防水、保暖、透湿性的材料。
[Detail]
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