钢制螺钉和垫圈组件|沙特标准|SASO-ISO-10644

  钢制螺钉和垫圈组件|沙特标准|SASO-ISO-10644
  
  SASO-ISO-10644
  
  Screw and washer assemblies made of steel with plain washers – Washer hardness classes 200 HV and 300 HV
  
  带平垫圈的钢制螺钉和垫圈组件-垫圈硬度等级为200 HV和300 HV

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