This product sealed with an inert solid-state components, high temperature and high pressure conditions, with excellent sealing performance;
本脂含有惰性固态密封组份，高温高压条件下具有优良的密封性能；
This product sealed with an inert solid-state components, high temperature and high pressure conditions, with excellent sealing performance;
本脂含有惰性固态密封组份，高温高压条件下具有优良的密封性能；
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