Pot door is sealed up with gasing type silicon rubber , is sealed and reliable , the length of service life is changed per 3 years one time.
门采用充气式硅橡胶
封，封可靠，使用寿命长，每三年
次。
Pot door is sealed up with gasing type silicon rubber , is sealed and reliable , the length of service life is changed per 3 years one time.
门采用充气式硅橡胶封，封可靠，使用寿命长，每三年次。
声明：以上例
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