A good sealing surface, a good gloss.
密封性良好，表面光泽度良好。
To ensure tight closure, and the valve seat valve sealing surface of the ground.
为了保证关闭严密，阀瓣与阀座密封面进行的研磨。
The current nuclear valve sealing surface surfacing material is generally cobalt alloy.
目前核阀密封面堆焊材料一般均为含钴合金。
The current nuclear valve sealing surface surfacing material is generally cobalt alloy.
目前核阀密封面堆焊材料一般均为含钴合金。
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