... available in most volumes. Ultra high purity and high purity compositions improve both optical quality and usefulness as scientific standards. Nan...
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.... Its characteristics are: low density, high specific strength, large elastic modulus, good shock absorption, greater impact load capacity ...
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... shock absorption, greater impact load capacity than aluminum alloy, and good resistance to organics and alkali corrosion. The main alloying elemen...
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... are aluminum, zinc, manganese, cerium, and a small amount of zirconium or cadmium. At present the most widely used is magnesium a...
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...tungsten electrode in DC welding environment, which often contains 1.70-2.20% rare earth , so the electrode head is generally red. W...
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Characteristic: -free, global initiated energy-gathered and adaptive technology, green, healthy and non-pollution. Advantage: By matching diffe...
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