1 GB/T 780-1979 汽油发动机化油器出口凸缘尺寸 Carbureters for automobile engines--Dimensions of outlet flanges 2 GB/T 983-1995 不锈钢焊条 Stainless steel covered electrodes
3 GB/T 984-1985 堆焊焊条 Covered electrodes for hardfacing
4 GB/T 985-1988 气焊、手工电弧焊及气体保护焊焊缝坡口的基本形式与尺寸 Basic forms and sizes of weld grooves for gas welding manual arc welding and gas-Shielded arc welding
5 GB/T 986-1988 埋弧焊焊缝坡口的基本形式和尺寸 Basic forms and sizes of weld grooves for submerged arc welding
6 GB/T 1173-1995 铸造铝合金 Casting aluminium alloys
7 GB/T 1174-1992 铸造轴承合金 cast bearing metals
8 GB/T 1176-1987 铸造铜合金技术条件 Specification for cast copper alloys
9 GB/T 1177-1991 铸造镁合金 Casting magnesium alloys
10 GB/T 1348-1988 球墨铸铁件 Spheroidal graphite iron castings
11 GB/T 1954-1980 铬镍奥氏体不锈钢焊缝铁素体含量测量方法 Determination of the weldign seam iron
element contentin chromium,nickel austenitic stainless steel
12 GB/T 2100-1980 不锈耐酸钢铸件技术条件 Stainless acid-resistant steel castings--Specifications
13 GB/T 2649-1989 焊接接头机械性能试验取样方法 Methods of sampling for mechanical properties tests of welded joint
14 GB/T 2650-1989 焊接接头冲击试验方法 Method of impact test for welded joint