The new seal material; application of flexible graphite.
新密封材料;柔性石墨的应用。
The supplier must provide quality certificate when we purchase seal material.
进货时供应商必须提供产品质量保证书。
And seal material and seal cushion structural design are the foundations that the seal technology is used on the engine.
而密封材料和密封垫结构设计是密封技术在发动机上应用的基础。
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