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electrode department is specialized in high performance electrode and electric connection materials with vacuum melting atmosphere protected rapid solidification and vacuum infiltration technology, which improved the uniformity and purity, being good for conductivity, strength, wear-resistance, soft temperature and preventing welding adhesion. products are widely used for aerospace, rail transit, ship and automobile manufacture, as well as nuclear power protection devices, molds and metals. in the field of resistance welding electrode, products used for point welding, butt welding, seam welding and projection welding. sirui has annual production ablity of 1,000 t.