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Brown coals, hard coals and anthracites. Classification by ranks and classes according to reflectance index of vitrinite
Document status: Active
Solid biofuels. Fuel specifications and classes. Part 2. Wood pellets for non-industrial use
Document status: Active
Ion-exchange membranes. Method for determination of total and equilibrium exchange capacity
Document status: Active
Heading machines having cutter heads mounted on booms. Basic parameters and dimensions. General technical requirements
Document status: Withdrawn
Mining equipment. Mine auxiliary fans. General specifications
Document status: Active