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Terms for subject Oil / petroleum containing 表面 硬化 | all forms | in specified order only
ChineseEnglish
牙轮爪背表面硬化shirt-tail hardfacing
粗糙硬化表面rough hardfacing
表面硬化hardfacing
表面硬化金属hard facing metal
表面硬化cemented steel
表面硬化钻头hard faced bit
裙部表面硬化shirt-tail hardfacing