Made up of oil expanding type or water expanding type expandable elastomer material, mechanical pipe string, centralizer and etc.
由油胀式或水胀式可膨胀弹性体材料与机械管柱、扶正器等构成。
Polyether polyurethane elastomer material was prepared based on polypropylene oxide glycol, toluene diisocyanate (TDI) and DEG as main base meterial, LDA and APP as flame retardants.
以聚氧化丙烯二醇和甲苯二异氰酸酯、一缩二乙二醇等为主要基体材原料，以联二脲（LDA）、聚磷酸铵（APP）作为阻燃剂，制作了聚醚聚氨酯弹性体。
In the cutting process of elastomer material with unique, small cell structure, it is difficult to guarantee the dimension and shape can meet the high accuracy requirements.
在对独特的含有大量微孔结构的非金属弹性材料的加工中，如何来保证其尺寸及形位精度和表面的质量是个难点。
In the cutting process of elastomer material with unique, small cell structure, it is difficult to guarantee the dimension and shape can meet the high accuracy requirements.
在对独特的含有大量微孔结构的非金属弹性材料的加工中，如何来保证其尺寸及形位精度和表面的质量是个难点。
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