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

15 GB/T 2651-1989 焊接接头拉伸试验方法 Method of tensile test for welded joint
16
GB/T 2652-1989 焊缝及熔敷金属拉伸试验方法 Method of tensile tests for weld and deposited
metal
17 GB/T 2653-1989 焊接接头弯曲及压扁试验方法 Methods of bend and compression tests
for welded joint
18 GB/T 2654-1989 焊接接头及堆焊金属硬度试验方法 Methods of hardness tests
for welded joint and surfacing metal
19 GB/T 2655-1989 焊接接头应变时效敏感性试验方法
Method of strain-age sensibillity test for welded joint
20 GB/T 2656-1981
焊缝金属和焊接接头的疲劳试验法 Weld beads metal and welds--Fatigue test
21 GB/T 2684-1981
铸造用原砂及混合料试验方法 Foundry sands and sand mixtures for casting--Method of testing