In the technical research have more breakthroughs, the plant is first-class equipment, wire drawing machine, cold drawing machine, take-up and other well-equipped, the main production of 0.5mm diameter to 10mm diameter between the oil quenching…
Originalartikel lesen: Oil Quenching And Tempering Spring Steel Wire65mn 60si2mna 55crsi Sae9254v 50crva60
