性能參數(shù)/ 3mm鋼球測針L材料貨號(hào)A7.3硬質(zhì)合金頭901312M2.5*0.45 901454＃2.5*0.45 鋼900030M2.5*0.45 塑料901994＃4-48UNF 902018M2.5*0.45 紅寶石120047M2.5*0.458.3*硬質(zhì)合金頭902119M2.5*0.45鋼900986M2.5*0.4515硬質(zhì)合金頭120049M2.5*0.45紅寶石120051M2.5*0.4520硬質(zhì)合金頭137391M2.5*0.45紅寶石137392M2.5*0.4525硬質(zhì)合金頭120053M2.5*0.45紅寶石120055M2.5*0.45 性能參數(shù)/ 針型測針(硬質(zhì)合金頭)DNL貨號(hào)A0.452.510120066M2.5*0.4512.510120065M2.5*0.451.51320120064M2.5*0.452815137257M2.5*0.45