Steel shot and steel grit of the five elements that is to say its chemical composition of carbon manganese silicon sulfur phosphorus

Their elements of the state is a control standard:

Carbon (C) 0.7 ~ 1.20%, manganese (Mn) 0.35 ~ 1.20%, silicon (Si) ≥ 0.40%, sulfur (S)) ≤ 0.05%

Phosphorus (P) ≤ 0.05%

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