美国阿姆斯特朗-纯银.014”笛头,.018”镍银镀银笛身和C型笛尾,镀银法国(开孔)按键,“革新”吹孔,直列G键。
Armstrong USA - Sterling silver . 014" head, . 018" silver-plated nickel silver body & C foot, silver-plated French (open hole)keys, "Progressive cut" embouchure hole, in-line G.
制备了纯镍刷镀层和镍基纳米氧化铝复合刷镀层。
A pure nickel coating and n-Al2O3/Ni composite coating were prepared.
与纯镍基熔覆层相比,加入Y2O3的镍基熔覆层显微硬度、耐磨性和耐蚀性均有较大程度提高。
The microhardness, wear resistance and corrosion rate of Ni-based cladding coating by adding Y2O3 improves greater comparing with not adding Y2O3.
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