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GXN14.514.1全磨汉鸣头钻头特长加长麻花钻14.615直柄
SKD61非标顶针13.8/13.9/14.1/14.2/14.3/14.4/14.514.6/14.715.9
。SKD61非标顶针13.8/13.9/14.1/14.2/14.3/14.4/14.514.6/14.715
PQT合金钻头钨钢铝用14-15
