... of mincer knives and mincer blades in China. With more than 10 years' research and experience ... problem of anti-rust, hardness and tenability, sharpness with low noise, clean,shine,free of burr, and most of ... wheel and core of pepper grider and coffee grinder, and the hardness is HRC 44-60 ... tailor-made orders. We will professionally provide you with the most efficient services, top quality products ...