The sealing performance of valve is not influenced uses pressed graphitesealingring .
阀门轴径密封采用石墨压制成形密封圈。
2
The packer and telescopic tube are designed to a whole body and V-shaped inflatable graphitesealingring is used to form the sealing system, ensuring the sealing performance of.
Oil and air lubrication casting tools: the machine manufactured precisely with imported materials, the mold cooling stave fit closely with graphitering, to ensure oil and air sealing effect.