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联系人 Ms. Anna
Feature industrial,Furong, Yueqing, Zhejiang
Employing high quality alloy steel for drilling body and YG carbide alloy for drilling tip, and in combination with various types of electric ***** drill is one of the most efficent tools suitably and widly used for hole drilling in hard materials like concrete/vrick in construction & installation industries. Our drill bit set is also good.