Epoxy powdered coating with low glossiness can be prepared by adding two curing agents with different reaction activation.
采用两种不同反应活性的固化剂，可制得低光泽的环氧粉末涂料。
Both used advanced seat port activation design along with proprietary anti-erosion coating to achieve a 100% success rate for ball launch, ball seat and sleeve shift.
该工艺采用先进的阀座端口激活设计和专门的抗侵蚀涂层确保小球的发射和移动成功率达到100%。
The morphology of activation film and pre-electroless Ni coating was analyzed by scanning electron microscope(SEM).
利用SEM观察了活化膜和预化学镀镍层的表面形貌。
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