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12.412.712.8钨钢12.112.512.612.212.312.9涂层钻头合金
含钴直柄麻SEK花钻头12./112/.212.312.5/12.6/12.8/13.0打孔转/
12.613度铣刀12.460.172.812.212.312铣刀合金.139.1钨钢
12.7银钢支12.812.012.912.212.312.6圆棒12.112.4银钢枝