GB 3390.5-1989.Inspection, packaging and marking for hand operated socket w re n...

国家标准2023.07.21

GB 4389-1984.A ssembly tools for screws and nuts-open-end double-head engineers...

国家标准2023.07.21

GB 4390-1984.Spanner gaps and sockets- m etric series- tolerances for general us...

国家标准2023.07.21

GB 4391-1984.Com binations of double-end wrenches gaps.GB 4391参照采用国际标准ISO 1085-...

国家标准2023.07.21

GB 4392-1984.Slugging open- end W renches and slugging box w renches.1适用范围GB 439...

国家标准2023.07.21

GB 4393-1984.Open-end w renches, box wrenches and combination wrenches-technical...

国家标准2023.07.21

GB 4394-1984.Inspection, markdg and packaging for open- end wrenches, ring wrenc...

国家标准2023.07.21

GB 4692-1984.Calculation and measuring the defects of leat her.1缺陷的定义1.1 伤残1.1.1...

国家标准2023.07.21

GB 4736-1984.Standard test method for permeability gas of pottery ware of daily...

国家标准2023.07.21

GB 4737-1984.Standard test method for permeability W ater of pottery ware of dai...

国家标准2023.07.21