40Mn Hot rolled steel bar, 40Mn Forged steel bar 40Mn is under JIS 4051 standard 40Mn features 1.good hardness 2.good toughness 3.good plasticity 4.good strength Common size for steel bar: Common diameter for hot rolled steel bar: 8mm to 70mm Common
GB/T16270 Q690C carbon and low alloy steel plate can be supplied with good quality and good price by KUNFENG. Q690C belong to china standard and has widely uses in china.
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