浙江伯特利密封有限公司专业生产轻型机械密封、汽车水泵密封以及炭化硅、炭化墨密封环的等产品。
Zhejiang Bethel seals co., Ltd's main products are middle-light mechanical seals. Automobile water pump seals. Silicon-carbide. Carbon-graphite series sealing rings etc.
金属氧化物避雷器(MOA)是一种新型保护器，具有非常好的非线性，在电力系统中得到广泛的运用，正逐步取代系统中的炭化硅避雷器。
MOA is a newly developed protector in power system and has very good non-linear characteristic, which makes it gradually become the substitute of the SiC arrester.
结果表明：在本工艺条件下，炭化稻壳中的二氧化硅以无定形水合二氧化硅结构存在；
The experimental results show:1) the silica in carbonized rice husk takes generally the form of hydrated silica.
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