901 GB/T 12616-1990 封闭型沉头抽芯铆钉 120 deg flush head break mandrel closed end blind rivets
902 GB/T 12617-1990 开口型沉头抽芯铆钉 120 deg flush head break mandrel blind rivets
903 GB/T 12618-1990 开口型扁圆头抽芯铆钉 Mushroom head break mandrel blind rivets
904 GB/T 12619-1990 抽芯铆钉 技术条件 Specifications for break mandrel blind rivets
905 GB/T 12621-1990 管法兰垫片 应力松弛试验方法 Test method for stress relaxation of gaskets for pipe flanges
906 GB/T 12622-1990 管法兰垫片 压缩率及回弹率试验方法 Test method for compressibility and recorery of gaskets for pipe flanges
907 GB/T 12759-1991 双圆弧圆柱齿轮基本齿廓 Double-circular-arc tooth profile of basic rack for cylindrical gears
908 GB/T 12760-1991 圆柱蜗杆、蜗轮图样上应注明的尺寸数据 Cylindrical worm and wormwheel information of the dimensional data to be given on the drawing
909 GB/T 12764-1991 滚动轴承 冲压外圈滚针轴承外形尺寸方案 Rolling bearings—Needle roller bearings, drawn cup, without inner ring—Boundary dimension plan
910 GB/T 12765-1991 关节轴承 安装尺寸 Spherical plain bearings, joint type—Abutment and fillet dimensions
911 GB/T 12948-1991 滑动轴承 双金属结合强度破坏性试验方法 Plain bearings—Metallic multilay er plain bearings—Destructive testing of bond for bearing metals
912 GB/T 12949-1991 滑动轴承 覆有减摩塑料层的双金属轴套 Plain bearings—Bimetallic bushes with plastic overlay
913 GB/T 13345-1992 轧机油膜轴承通用技术条件 General technical requirement of oil film bearing for rolling mill
914 GB/T 13401-1992 钢板制对焊管件 Steel plate butt-welding pipe fittings
915 GB/T 13402-1992 大直径碳钢管法兰 Large-diameter carbon steel pipe flanges
916 GB/T 13403-1992 大直径碳钢管法兰用垫片 Gaskets for large-diameter cabon steel pipe flanges
917 GB/T 13404-1992 管法兰用聚四氟乙烯包复垫片 Polytetrafluoroethylene envelope gaskets for pipe flanges
918 GB/T 13405-1992 汽车Ｖ带轮 Grooved pulleys for automotive V-belt
919 GB/T 13575.1-1992 带传动--普通Ｖ带传动 Belt drives—Classical V-belt drives