Keywords:
Accessories, Ageing (materials), Cast-iron, Coating thickness, Coatings, Corrosion protection, Definitions, Elongation at break, Extruded, Fittings, Freedom from pores, Indentation resistance, Marking, Material properties, Materials, Order indications, Peel resistance, Physical resistance, Pipelines, Pipes, Plastics, Polyethylene, Quality, Quality assurance, Sheathing resistance, Sheathings, Shock resistance, Specification (approval), Spheroidal-graphite cast-iron, Testing