The knife bar is made of high-quality chrome vanadium steel, and the hardness reaches HRC55-60° after special high-frequency heat treatment Manganese phosphate anti-rust treatment. The handle and knife bar assembly are ergonomically designed and comfortable to operate The handle is made of imported TPE raw materials, which meets the European PAHS non-toxic and environmentally friendly requirements and can be used normally at low temperatures of -25℃ /+3℃ and high temperatures70℃ Certified against German VDE and proved by 10000V dielectric withstand voltage test, in compliance with IEC/EN 60900