Vitriolic it is to use entrance element sulfur to be produced in place. 硫酸则是用进口元素硫在当地生产。
It is important for us to get the optimum sulfur content under specific welding conditions and improve the quality and the reliability of the weldment. 表面活性元素硫主要是通过改变熔池中流体的流动方式来影响熔池的形状和尺寸。
