久久精品aⅴ无码中文字字幕重口,蜜桃久久久电影,欧美最猛,日韩天天射

不銹鋼材性能1.4429 不銹鋼鋼材加工1.4449

碳素工具鋼:C70W1 1.1520 C80W1 1.1525 C105W1 1.1545 C110W 1.1554 C125W 1.1563  C135W 1.1573 C70W2 1.1620 C80W2 1.1625 C105W2 1.1645 C45W 1.1730 C60W 1.1740 C37W 1.1744 C75W 1.1750 C55W 1.1820 C85W 1.1830….

冷作合金工具鋼:125Cr1 125Cr2 1.2002 75Cr1 1.2003 85Cr1 1.2004 140Cr3 140Cr2 1.2008  90Cr3 1.2056 105Cr41.2057 145Cr6 1.2063 102Cr6 1.2067 X210Cr12 1.2080 X42Cr13 1.2083 X33CrS16 1.2085 62SiMnCr4 1.2101 58SiCr8 1.2103 90CrSi5 1.2108 125CrSi5 1.2109  105MnCr4 1.2127 200CrMn8 1.2129 21MnCr5 1.2162 X165CrV12 1.2201 140CrV1 1.2206  31CrV3J 1.2208 115CrV3 1.2210 80CrV2 1.2235 51CrV4 51cRmNV4 1.2241 59CrV4 1.2242  61CrSiV5 1.2243 38CrSiV6 1.2248 45SiCrV6 1.2249 100CrMo5 1.2303 102CrMo6 1.2305 29CrMoV9 1.2307 40CrMnMo7 1.2311 40CrMnMoS8-6 1.2312  X36CrMo17 1.2316 X64CrMo14 1.2319 86CrMoV7 1.2327 45CrMoV7 1.2328 X6CrMo4  X6CrMo15-5 1.2341…27CrMoV6-12N 1.2353 X91CrMoV18 1.2361