19 GB/T 3235-1982 通风机基本型式、尺寸、参数及性能曲线 Basic types, sizes, parameters and characteristics of fans
20 GB/T 3264-1989 单张纸平版胶印机 技术条件 Specification for sheet-fed planographic offset press
21 GB/T 3811-1983 起重机设计规范 Design rules for cranes
22 GB/T 4307-1984 起重吊钩 名词术语 Lifting hooks--Nomenclature
23 GB/T 4652-1984 双臂式装载机 试验方法 Method for testing the gathering arm loaders
24 GB/T 4774-1984 离心机和过滤机 名词术语 Terminology of centrifuge and filter
25 GB/T 4975-1995 容积式压缩机术语 总则 Displacement compressors vocabulary--General
26 GB/T 4976-1985 压缩机分类 Compressors--Classification
27 GB/T 4980-1985 容积式压缩机噪声声功率级的测定--工程法 Determination of sound power level for noise emitted by displacement compressors--Engineering method
28 GB/T 4983-1985 拧紧型真空快卸法兰 Vacuum technology screwed type quick release flange
29 GB 5099-1994 钢质无缝气瓶 Seamless steel gas cylinders
30 GB 5100-1994 钢质焊接气瓶 Welded steel gas cylinders
31 GB/T 5140-1985 叉车 挂钩型货叉 术语 Fork lift trucks--Hook-on type fork arms--Vocabulary
32 GB/T 5141-1985 平衡重式叉车 稳定性 基本试验 Counter balanced lift trucks--Stability--Basic tests
33 GB/T 5142-1985 前移式和插腿式叉车 稳定性试验 Reach and straddle fork lift trucks--Stability tests
34 GB 5143-1985 高起升车辆护顶架 技术要求和试验方法 High-lift rider trucks--Overhead guards--Specification and testing
35 GB/T 5182-1996 叉车 货叉 技术要求和试验 Fork-lift trucks--Fork arms--Technical characteristics and testing
36 GB/T 5183-1985 叉车货叉的尺寸 Fork lift trucks--Fork arms--Dimensions
37 GB/T 5184-1996 叉车 挂钩型货叉和货叉架 安装尺寸 Fork-lift trucks--Hook-on type fork arms and fork arm carriages--Mounting dimensions
38 GB/T 5621-1985 凿岩机械与气动工具性能试验方法 Test methods of performance for rock drilling machines and pneumatic tools