长期供应Cr9Mo合金钢管、N80石油套管、P110石油套管 品质优良!
Cr9Mo合金钢管 Cr9Mo 38*3.4 4560/吨
Cr9Mo合金钢管 Cr9Mo 42*5.3 4570/吨
Cr9Mo合金钢管 Cr9Mo 57*4.5 4580/吨
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