The rental at
For steel brand st. 3 The method of smelting steel is especially significant.
Calm steel shows a significant increase in shock viscosity; Good calm Marten Steel ST. 3 can give shock viscosity along the rental at normal temperature (20 °) approximately 20 kgm/cm2 and threshold of coldness (impact viscosity of about 2 kgm/cm2) below -60 ° and thus completely satisfies the requirements.