采用高质量的钨铬钴合金6和其它表面硬化合金，确保下列现代技术的的应用：闸阀楔板和铸钢阀座的控制预热，自动化等离子弧硬面设备和控制冷却过程。
　　High quality deposits of Stellite 6 and other hardfacing alloys are assured by the use of the following state of the art technology: controlled preheating, automatic Plasma Arc hardfacing equipment and a controlled cooling process. Shown below is the hardfacing of a gate valve wedge and to the right a cast steel seat.