Min. Order Reference FOB Price
1000 kg US$2.80 / kg
Product Description
4340 round steel aisi 4340 Steel sae4340 steel 4340 alloy 4340 steel plate Chinese GB steel number: 40CrNi2MoA, German DIN steel number 36CrNiMo4, German DIN material number 1.6511, French NF standard 40NCD3, Japanese JIS standard SNCM439, British BS standard 816M40, American ...