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AFNOR NF A49-249 Steel tubes. Longitudinally welded plain end tubes for the food industry. Auste... AFNOR NF A04-112 Iron and steel. Macrographic method of showing and describing the chemical hete... AFNOR NF A04-111 Iron and steel. Micrographic determination of the extent of decarburisation of ... AFNOR NF R93-183 Mechanical characteristics of steel resistance welding screws, studs and nuts. AFNOR NF A04-107 Iron and steel. Micrographic method of determination of the non metallic inclus... AFNOR NF A49-189 Steel tubes. Butt welding, night-angled bends, 3d, galvanized dimensions. Techn... AFNOR NF M88-514 Dual material tanks for underground storage of liquid petroleum products. Steel... AFNOR NF A89-421 Braze welding filler metals. Determination of the conventional tensile strengh ... AFNOR NF A49-185 Steel tubes. Butt welding caps. AFNOR NF M88-516 Steel tanks with outside concrete coating for underground storage of mineral oi... AFNOR NF T30-800 Exterior building paints. Preparation of test panels of steel-cement-silica. AFNOR NF A02-015 Iron and steel. Conventional identification of steels by colours. AFNOR NF A49-250 Steel tubes. Welded plain end tubes of commercial quality with or without speci... AFNOR NF A49-647 Steel tubes. Structural welded tubes, circular, square, rectangular or oval, in... AFNOR NF A36-000 Recommendations concerning the weldability of structural steel and of boiler an... AFNOR NF E29-661 Forged-steel valves for chlorine cylinders (max.capacitt 60 kg). Nominal pressu... AFNOR NF A49-031 Steel tubes. Bending radii. Recommended minimum values for unalloyed steel tube... AFNOR NF L21-260 "Sl" type compound rivet with 30 ncd 16 steel shank. Technical specif... AFNOR NF A49-141 Steel tubes. Welded plain end tubes of commercial quality for general purposes ... AFNOR NF A49-115 Steel tubes. Hot-finished seamless tubes suitable for threading. Dimensions. Te... AFNOR NF F56-332 Fixed railway installations. Equipment for overhead telecommunication and signa... AFNOR NF F56-331 Fixed railway installations. Equipment for overhead telecommunication and signa... AFNOR NF P34-401 Roofing. Ribbed sheets made from galvanized steel either prelaquered or not. Di... AF M85-25 SEC 8.5 NOTICE 7 STEEL WINDOWS