Vertebral ring, spring, spring seat and clasp, auxiliary seals have "o" shaped rubber ring and PTFE wedge ring, quiet ring for graphite materials (M106K).
椎环、弹簧、弹簧座以及卡环，辅助密封圈有“O”形橡胶圈和PTFE楔形环，静环材料都为石墨(M106K)。
Vertebral ring, spring, spring seat and clasp, auxiliary seals have "o" shaped rubber ring and PTFE wedge ring, quiet ring for graphite materials (M106K).
椎环、弹簧、弹簧座以及卡环，辅助密封圈有“O”形橡胶圈和PTFE楔形环，静环材料都为石墨(M106K)。
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