烧结碳化钨硬质合金镶齿
sintered tungsten-carbide insert
碳化钨硬质合金钢钎
tungsten carbide drill steel
镶碳化钨硬合金齿钻头
sintered tungsten carbide compact bit
Ni基碳化钨合金
Ni-based tungsten carbide alloy
钴钨硬质合金
cobalt-bonded tungsten carbide
WC Co cemented carbide
cobalt-cemented tungsten carbide
无钨硬质合金
titanium carbide basde cemented carbide
non tungsten hard alloys
tungsten-free cemented carbide
CVD多层涂层硬质合金
CVD multilayer coated cemented carbides
TiN涂层硬质合金
TiN coated cemented carbide
TiN coated carbide
WC、Cr硬质合金层
WC and Cr hard alloy cladding