... steel, stainless steel , iron, bronze, copper, alloy and aluminum for preventing defects caused by oxides, dross, gas, ... turbulence in the metal stream, Smoothes out metal flow, avoiding sprays, splatter and backset. Improve fluidity, castability, machinability, yield ... , Reduce rejects and rework, Low-pressure loss.Provides consistent flow rate and capacity. Various sizes, shapes and pore sizes are ...