Page 57 - 《金属管》总第184期电子杂志
P. 57

15CrMoG~ffi~~~


           12Cr1 MoVG~ffi~~~



                    ~a1~~=u1rrtililil~,  ~~1m~l$a100001Noil!

        ililf~t~~,  11a1o1~1~m,  1B1ixx~ifie~PmHSiailYI!~ !


































                                                                      ~
                                                                   .... .,.,._llt.;IO,C ..... ,,,. ... ..,,...,
                                                    ...
                                                atUFJt~•lc:11•••~11J
   52   53   54   55   56   57   58   59   60   61   62