Company's patented product, independently developed mine reverse circulation drilling rig connecting rod material grade ZG01, replaces the imported grade 4330V, is made of high-strength alloy steel, and under special quenching process and equipment, has sufficient strength and toughness, high impact energy, good wear resistance, deep permeability, uniform hardness, and can withstand large tensile and torsional forces, preventing breakage or deformation during operation. Its service life is twice that of 4330V material. It is mainly used in coal, mining, drilling, and engineering industries.

　　Company's patented product, independently developed mine reverse well drilling rig connecting rod material grade ZG01, replacing the imported grade 4330V, is made of high-strength alloy steel. Under special quenching and tempering processes and equipment, it has sufficient strength and toughness, high impact energy, good wear resistance, deep penetration, uniform hardness, and can withstand large tensile and torsional forces, preventing breakage or deformation during operation. Its service life is twice that of 4330V material. It is mainly used in coal, mining, drilling, and engineering industries.