澳洲10预测

  • Sulfidation Resistance – steel protection from H2S, SO2 SO3 attack
  • Oxidation Resistance – stable aluminum oxide film formed
  • Carburization Resistance – prevents carbon diffusion into base metal
  • Hydrogen Permeation – diffusion rates of H2 into steel reduced
  • Masked surfaces of aluminized components can be welded
极速赛车开奖官方同步 极速飞艇官方 澳洲5开奖历史记录
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