GB/T 3952-1998 Copper drawing stock for electrical purposes

GB 3952.1-1989 GB 3952.2-1989 GB 3952.3-1989 GB 3952.4-1989

GB/T 3952-2008 Copper drawing stock for electrical purpose

GB 4909.2-85 GB/T 5121.1-1996 Copper and copper alloys—Determination of copper content GB/T 5121.2-1996 Copper and copper alloys—Determination of phosphorus content GB/T 5121.3-1996 Copper and copper alloys—Determination of lead content GB/T 5121.4-1996 Copper and copper alloys—Determination of carbon and sulfur content GB/T 5121.5-1996 Copper and copper alloys—Determination of nickel content GB/T 5121.6-1996 Copper and copperr alloys—Determination of bismuth content GB/T 5121.7-1996 Copper and copper alloys—Determination of arsenic content GB/T 5121.8-1996 Copper and copper alloys—Determination of oxygen content GB/T 5121.9-1996 Copper and copper alloys—Determination of iron content GB/T 5121.10-1996 Copper and copper alloys—Determination of tin content GB/T 5121.11-1996 Copper and copper alloys—Determination of zinc content GB/T 5121.12-1996 Copper and copper alloys—Determination of antimony content GB/T 5121.13-1996 Copper and copper alloys—Determination of aluminium content GB/T 5121.14-1996 Copper and copper alloys—Determination of manganese content GB/T 5121.15-1996 Copper and copper alloys—Determination of cobalt content GB/T 5121.16-1996 Copper and copper alloys—Determination of chromium content GB/T 5121.17-1996 Copper and copper alloys—Determination of beryllium content GB/T 5121.18-1996 Copper and copper alloys—Determination of magnesium content GB/T 5121.19-1996 Copper and copper alloys—Determination of silver content GB/T 5121.20-1996 Copper and copper alloys—Determination of zirconium content GB/T 5121.21-1996 Copper and copper alloys—Determination of titanium content GB/T 5121.22-1996 Copper and copper alloys—Determination of cadmium content GB/T 5121.23-1996 Copper and copper alloys—Determination of silicon content GB/T 13293-91