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CEN EN 642 Prestressed concrete pressure pipes, cylinder and non-cylinder, including joint... CNIS GB/T 223.50-94 Methods for chemical analysis of iron, steel and alloy. The phenylfluorone-CTMA... CNIS GB/T 223.32-94 Methods for chemical analysis of iron,steel and alloy. The hypophosphite reduct... CNIS GB/T 223.6-94 Methods for chemical analysis of iron,steel and alloy. The neutralization titri... CNIS GB/T 223.33-94 Methods for chemical analysis of iron,steel and alloy. The chlorophosphonazo mA... CNIS GB/T 223.43-94 Methods for chemical analysis of iron, steel and alloy. Determination of tungst... CNIS GB/T 223.36-94 Methods for chemical analysis of iron, steel and alloy. The neutral titration m... CNIS GB/T 223.49-94 Methods for chemical analysis of iron,steel and alloy. Extraction separation-ch... CNIS GB/T 223.45-94 Methods for chemical analysis of iron,steel and alloy. The cupral Separation-xy... CNIS GB/T 223.30-94 Methods for chemical analysis of iron,steel and alloy. The arsenazo spectrophot... CNIS GB/T 223.47-94 Methods for chemical analysis of iron,steel and alloy. The carrier precipitatio... CEN EN ISO 9455-12 Soft Soldering Fluxes - Test Methods - Part 12: Steel Tube Corrosion Te... COE ER 1110-345-53 STRUCTURAL STEEL CONNECTIONS CNIS GB 15146.4-94 Nuclear criticality safety for fissile materials outside reactor-Nuclear critic... CNIS GB/T 15169-94 Approval testing of manual welders-Fusion welding-steel CNIS GB/T 1853-94 Marine flanged cast steel over board stop check valve CNIS GB/T 6482-94 Rope thread extension steel bars for rock drilling CNIS GB 4234-94 Stainless steel for surgical implants CNIS GB/T 14978-94 Continual hot-dip aluminium zinc silicon alloy coated steel strips and sheets CNIS GB/T 14979-94 Eutectic carbide of steel-Micrographic method using standard diagrams CNIS GB/T 14980-94 Major diameter welded steel pipe for lowpressure liquid service CNIS GB/T 14977-94 General requirement of surface finish for hot rolled steel plates CNIS GB/T 14957-94 Steel wires for melt welding CNIS GB/T 14958-94 Steel wires for gas shielded welding