424 GB/T 3832.3-1983 拉刀圓柱形后柄型式和基本尺寸 Round follower end for broaches--Types and main dimensions
425 GB/T 3858-1993 液力傳動術語 Hydrodynamic drive terminology
426 GB/T 3882-1995 滾動軸承 外球面球軸承和偏心套外形尺寸 Rolling bearings--Insert bearings and eccentric looking collars --Boundary dimensions
427 GB/T 3944-1983 關節軸承 詞匯 Spherical plain bearing,joint type--Vocabulary
428 GB/T 4140-1993 輸送用平頂鏈和鏈輪 Flat-top chains and associated chainwheels for conveyors
429 GB/T 4199-1984 滾動軸承公差定義 Rolling bearings--Tolerances-definitions
430 GB/T 4222-1991 桿端關節軸承 外形尺寸和公差 Spherical plain bearing rod ends—Boundary dimensions and tolerances
431 GB/T 4323-1984 彈性套柱銷聯軸器 Pin coupling with elastic sleeve
432 GB/T 4603-1984 滾針軸承 重系列 尺寸和公差 Needle roller bearings--Heavy series--Dimensions and tolerances
433 GB/T 4604-1993 滾動軸承 徑向游隙 Rolling bearings--Radial internal clearance
434 GB/T 4646-1991 GEC...FSA 型自潤滑向心關節軸承外形尺寸 GEC...FSA type maintenance-free spherical plain radia lbearings, joint type—Boundary dimensions
435 GB/T 4648-1996 滾動軸承 圓錐滾子軸承 凸緣外圈 外形尺寸 Rolling bearings--Metric tapered roller bearings--Flanged cups--Boundary dimensions
436 GB/T 4661-1989 滾動軸承 圓柱滾子 Rolling bearings-cylindrical rollers
437 GB/T 4662-1993 滾動軸承 額定靜負荷 Rolling bearings--Static load ratings
438 GB/T 4663-1994 滾動軸承 推力圓柱滾子軸承 外形尺寸 Rolling bearings--Cylindrical thrust roller bearings--Boundary dimensions
439 GB/T 4982-1985 夾緊型真空快卸法蘭 Vacuum technology clamped type quick release flange
440 GB/T 5014-1985 彈性柱銷聯軸器 Elastic pin coupling
441 GB/T 5015-1985 彈性柱銷齒式聯軸器 Gear coupling with elastic pin