现货供应德国进口材料高温高强度钢和高温合金 NiCr20Co18Ti 2.4632 NiCo20Cr15MoAlTi 2.4634 NiCr15Fe 2.4816 X3CrNiMoN17-13 1.4910 X8CrCoNiMo10-6 1.4911 X19CrMoVNbN11-1 1.4913 1.4914 X6CrNiMo17-13 1.4949 X15CrMo12-1 1.4920 X19CrMoV12-1 1.4921 X20CrMoV12-1 1.4922 X22CrMoV12-1 1.4923 1.4934 X20CrMoWV12-1 1.4935 X12CrNiMoV12-3 1.4938 1.4939 X6CrNiTiB18-10 1.4941 X6CrNiWNb16-16 1.4945 规格齐全