CNIS GB/T 1229-91 High strength large hexagon nuts for steel structures CNIS GB/T 1231-91 Specifications of high strength bolts with large hexagon head, large hexagon nu... CNIS GB/T 1228-91 High strength bolts with large hexagon head for steel structures CNIS GB/T 1230-91 High strength plain washers for steel structures CNIS GB/T 12756-91 Steel wire ropes for rubber hose CNIS GB/T 3277-91 Corrugated steel plates with lath and lentilform CNIS GB/T 12753-91 Steel wire ropes for conveyer belts CNIS GB/T 4239-91 Cold rolled stainless steel and heatresisting steel strips CNIS GB/T 2973-91 Zinc-coated steel wire--Test method for weight of zinc coating CNIS GB/T 12755-91 Roll-profiled steel sheet for building CNIS GB/T 12754-91 Coloured paint coat steel plates and strips CNIS GB/T 716-91 Cold-rolled carbon structural steel strips CNIS GB/T 3275-91 Hot-rolled quality carbon structural steel plates andstrips for automobile CNIS GB/T 12773-91 Valve steel bars for internal combustion engines--Technical requirements CNIS GB/T 12770-91 Welded stainless steel tubes for machine structure CNIS GB/T 12771-91 Welded stainless steel pipes for liquid delivery CNIS GB/T 12718-91 High-tensile steel chains (round link) for mining CEN EN 10205 Cold Reduced Blackplate in Coil Form for the Production of Tinplate or Electrol... CENELEC EN 50068 Wrought Steel Enclosures for Gas-Filled High- Voltage Switchgear and Controlgea... CNIS GB/T 12612-90 General specification for multifunctional solution of steel and iron surface tr... CNIS GB/T 12606-90 Magnetic leakage flux testing method of steel tubes and bars CNIS GB/T 12605-90 Methods of radiographic inspection and quality classification of circumferentia... CSA W186-M1990 Welding of Reinforcing Bars in Reinforced Concrete Construction - General Instruction N... CNIS GB/T 12470-90 Fluxes for the submerged arc welding of low alloy steel