... seated and valve annealing:800-900°C slow cooling or 750°c quick coolinghot treatment quench:920-980°C oil ... 202, 304, 321, 316, 316L, 310S, 430 etcShapeRound , Hex square, angle, flat, SquareSurfaceBlack, Pickling, Polish, peeled etc ., LengthAccording to ... industry, Architecture, Food industry, Auto-industry, Household productsCold forged round bar, It is from 90mm~260mmGrinding bar, It is from ...