Vacuum packer can complete the whole process of pumping air into vacuum state, sealing, lettering, cooling and exhaust in terms of the process, but just need to press the vacuum cover.

真空包装机只需按下真空盖即自动按程序完成抽真空、封口、印字、冷却、排气的全过程。

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Thanks to the development of new sealing technology, the regeneration type radiant tube nozzle can be used in the vacuum furnace to achieve uniform heating result.

新型密封技术的开发，使蓄热式辐射管烧嘴得以应用在真空炉上，并获得了均匀的加热效果。

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It proved that the new sealing and filling material can filling vacuum quickly and can meet the demand of coal mining.

实践表明，新型充填堵漏技术充填速度快，适应了煤矿生产需要。

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