河北永广矿山设备有限公司

    Our company' s production of cutting teeth is divided into coal cutting and hard rock highstrength cutting, the extension body selection of high strength alloy steel, high strength and high wear resistance, the use of isothermal quenching process, the hardness is not reduced, hard alloy using domestic famous manufacturers, quality stability. According to customer need to add welding wear-resistant layer, the hardness reached 65 degrees above