AISI 4340QT ,Palm Oil drive shaft
4340 High Tensile Steel, 6582, ASSAB 705, SNCM439, EN24 4340 is a 1.8% nickel – chromium – molybdenum high hardenability […]
4340 High Tensile Steel, 6582, ASSAB 705, SNCM439, EN24 4340 is a 1.8% nickel – chromium – molybdenum high hardenability […]