The way to achieve better economic results of thin kerf diamond bits 提高薄壁金刚石钻头经济效益的途径
2.
Study of electroplated thin - wall diamond core bit and its application for drilling electro - melting zirconcorundum refractory materials 薄壁金刚石钻头的研制和在电熔锆刚玉耐火材料中的应用