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CEN EN 2012 Bearings-Airframe Rolling Rigid, Single Row Ball Bearings in Steel Diameter Ser... CEN EN 2014 Bearings - Airframe Rolling Rigid Single Row Ball Bearings in Corrosion Resisti... CEN EN 2015 Bearings-Airframe Rolling Double Row, Self Aligning Ball Bearings in Steel Diam... CEN EN 2017 Bearings-Airframe Rolling Double Row Self Aligning Ball Bearings in Corrosion R... CEN EN 2011 Bearings-Airframe Rolling Rigid Single Row Ball Bearings in Corrosion Resisting... CNIS GB/T 4074.19-83 Methods of test for enameled wires--Breakdown voltage test by means of steel ba... CNIS GB 4053.4-83 Fixed steel industrial platform CNIS GB 1179-83 Aluminium stranded conductors and aluminium conductors,steel-reinforced CNIS GB/T 594-83 Marine forged steel male thread stop valves CNIS GB/T 1241-83 Marine forged steel male thread stop and check valves CNIS GB/T 3879-83 The material blanks of steel bonded carbide COE MOGS-05121 STRUCTURAL STEEL COE MOGS-02360 STEEL H-PILES COE MOGS-13413 STEEL STANDPIPES AND GROUND STORAGE RESERVOIRS COE MOGS-13412 ELEVATED STEEL WATER TANKS COE MOGS-16641 CATHODIC PROTECTION SYSTEM (STEEL WATER TANKS) CNIS GB/T 3642-83 Type S brazed stainless steel flexible metallic hose CNIS GB/T 3639-83 Cold-drawn or cold-rolled precision seamless steel tubes CNIS GB/T 3522-83 Cold-rolled quality carbon structural steel strips COE 8.5 NOTICE 11 STEEL WINDOWS CNIS GB 3423-82 Seamless steel tubes standard use diamond core drilling CNIS GB/T 3428-82 Galvanized steel core wire for aluminum cable steel reinforced CNIS GB/T 3206-82 Carbon constructional quality steel wires CNIS GB/T 3172-82 Determination of adhesion ratio of aluminum powder--Steel plate method