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304/316 Ss Concentric Reducers Compression process: stainless steel and carbon steel Low alloy steel necking coefficient is different, the first press of stainless steel up to 0.65 to 0.7, the next few is 0.85 to 0.9. Carbon steel and low alloy steel is generally 0.7 to 0.9, usually pressed can be pressed for 1 to 3 times, but the material properties of different will appear for 4 consecutive suppression. Lubrication when pressed, pressed by the…