Shimei Company's auenching oi is formulated using deeply refined base oi and yarious imported additives sucas high and low temperature antioxidants, detergents, brighteners, and rust inhibitors. Shimei Company's quenchingoil includes a variety of products such as fast bright quenching oil series, ultra-fast quenching oil series, vacuumquenching oil series,and isothermal qraded quenching oil series.