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1、尺寸型号(IADC)英寸mm镶齿牙轮钻头钢齿牙轮钻头6152.4517, 537,617, 637126.127.216.217. 316.346.347 6 1/2165.1517, 537126.127.216.217. 316.346.3477 7/8200.0517,527,547,617,627,637126.127.216.217. 316.346.3478 1/2215.9437,447,517,537,617,627,637126.127.216.217. 316.346.3479 1/2241
2、.3437,517,537,547,617126.127.216.217. 316.346.3479 5/8244.5437,517, 537,547,617126.127.216.217. 316.346.3479 7/8250.8437,517, 537,547,617126.127.216.217. 316.346.34712 1/4311.1437,517, 537,547,617,627,637126.127.216.217. 316.346.34717 1/2444.5517,537,617,627
3、,637126.127.216.217. 316.346.34724609417,517, 537,547,617,637126.127.216.217. 316.346.34726660417,517, 537,547,617,637126.127.216.217. 316.346.347
