Conditionally resistant to corrosion, not resistant to acids, 10 years of experience without corrosion problems with suitable wood, not suitable for wood containing tannins such as cumara, oak, merbau, robinia etc... Not suitable for air containing chlorine, stainless steel C1 according to DIN 10088, 60% higher break torque than A2 and A4, hardened stainless steel is magnetizable.