硬煤

• Standard specification for coal - tar pitch used in roofing , dampproofing , and waterproofing
  铺屋面,防潮与防水用硬煤沥青的标准规范
• Solid mineral fuels . method of sampling of hard coal and lignite . treatment of sample
  固体矿物燃料.硬煤和褐煤取样方法.样品的处理
• Solid mineral fuels . sampling method for hard coal and lignites . scientific explanations
  固体矿物燃料.硬煤和褐煤取样方法.科学解释
• Preparation of hard coal ; simulation of processes and material - flows ; combination of processes
  硬煤选煤.材料流和工艺的摸拟.工艺组合
• Preparation of hard coal - assessment of preparation equipment and processes - part 2 : sizing
  选硬煤.选煤设备和工艺的评定.第2部分:尺寸
• Preparation of hard coal - assessment of preparation equipment and processes - part 3 : cleaning
  选硬煤.选煤设备和工艺的评定.第3部分:清洁
• Investigations of the raw material in hard - coal - mining ; channel sample ; sampling and schema of tests
  硬煤矿的原材料勘察.矿槽试样.取样及试验大纲
• Preparation of hard coal - assessment of preparation equipment and processes - part 6 : homogenizing
  选硬煤.选煤设备和工艺的评定.第6部分:均化作用
• Underground lighting in hardcoal mining - lighting - technological planning bases - part 7 : pit - bottom
  地下硬煤开采照明.照明设计原则.第7部分:矿井底部
• Investigations of the raw material in hard - coal - mining ; determination of tensile strength on solid rock
  硬煤矿开采的原矿材的勘测.坚岩石的拉伸强度的测定