It USES a single stator, rare-earth neodymium iron boron permanent magnet in a cast aluminum casing with stainless steel fittings.
它把单个定子、钕铁硼永磁稀土材料装在铝制铸件内，用不锈钢零件固定。
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By using real time data gathering and test system of the aero engine test bed, the detail measurement of single stage transonic fan performance with and without different casing treatments were made.
Thee main products are: all kinds of diamond drill bits, PDC bits, casing boots, reaming, single and double tube wireline coring drilling, coring drill pipe, casing and other drilling tools.