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JB机械 今日: 0|主题: 7287|排名: 140 

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JB 2184-77 液压元件型号编制方法 attachment zcyjkl 2008-8-15 01588 zcyjkl 2008-8-15 07:47
JB 2435-1978 铸造工艺符号及表示方法 attachment zcyjkl 2008-8-15 01774 zcyjkl 2008-8-15 07:46
JB 106-78 阀门标志和识别涂漆 attachment zcyjkl 2008-8-15 02377 zcyjkl 2008-8-15 07:45
JB 2291-78汽车、拖拉机用散热器芯子结构型式及尺寸系列 attachment zcyjkl 2008-8-15 02120 zcyjkl 2008-8-15 07:45
JB 2292-78汽车、拖拉机用散热器进水口、出水口、 attachment zcyjkl 2008-8-15 01892 zcyjkl 2008-8-15 07:44
JB 2293-78 汽车、拖拉机风筒试验方法 attachment zcyjkl 2008-8-15 02283 zcyjkl 2008-8-15 07:43
JB 2295-78汽车、拖拉机用灯具型号编制方法 attachment zcyjkl 2008-8-15 01758 zcyjkl 2008-8-15 07:42
JB/T 2291-1978 汽车拖拉机用散热器芯子结构型式及尺寸系列 attachment zcyjkl 2008-8-15 02207 zcyjkl 2008-8-15 07:42
JB/T 2292-1978 汽车拖拉机用散热器进水口出水口加水口及盖 attachment zcyjkl 2008-8-15 02847 zcyjkl 2008-8-15 07:41
JB/T 2293-1978汽车、拖拉机散热器风筒试验方法 attachment zcyjkl 2008-8-15 02015 zcyjkl 2008-8-15 07:40
JB 2629-1979 汽车起重机和轮胎起重机技术条件 attachment zcyjkl 2008-8-15 01617 zcyjkl 2008-8-15 07:39
JB 2448-79 卧式轮轴压装机基本参数 attachment zcyjkl 2008-8-15 01894 zcyjkl 2008-8-15 07:38
JB 2555-79 碳素钢、低合金钢人、手孔分类与技术条件 attachment zcyjkl 2008-8-15 01745 zcyjkl 2008-8-15 07:37
JB 2556-79 垂直吊盖对焊法兰人孔 attachment zcyjkl 2008-8-15 02069 zcyjkl 2008-8-15 07:36
JB 2557-79常压旋柄快开人孔 attachment zcyjkl 2008-8-15 02099 zcyjkl 2008-8-15 07:36
JB 577-79常压人孔 attachment zcyjkl 2008-8-15 02163 zcyjkl 2008-8-15 07:35
JB 579-79 长圆形回转盖快开人孔 attachment zcyjkl 2008-8-15 01655 zcyjkl 2008-8-15 07:34
JB 580-79 回转盖人孔 attachment zcyjkl 2008-8-15 01900 zcyjkl 2008-8-15 07:34
JB 581-79 回转拱盖快开人孔 attachment zcyjkl 2008-8-15 01902 zcyjkl 2008-8-15 07:33
JB 972-77焊接式三通管接头 attachment zcyjkl 2008-8-15 01804 zcyjkl 2008-8-15 07:24
JB 973-77 焊接式四通管接头 attachment zcyjkl 2008-8-15 01924 zcyjkl 2008-8-15 07:24
JB 974-77 焊接式隔壁直通管接头 attachment zcyjkl 2008-8-15 01959 zcyjkl 2008-8-15 07:23
JB 975-77焊接式隔壁直角管接头 attachment zcyjkl 2008-8-15 01871 zcyjkl 2008-8-15 07:23
JB 977-77 焊接式分管管接头 attachment zcyjkl 2008-8-15 01620 zcyjkl 2008-8-15 07:22
JB 978-77 焊接式铰接管接头 attachment zcyjkl 2008-8-15 01911 zcyjkl 2008-8-15 07:21
JB 979-77 直角焊接接管 attachment zcyjkl 2008-8-15 02877 zcyjkl 2008-8-15 07:20
JB 981-77 焊接管接头用螺母 attachment zcyjkl 2008-8-15 01672 zcyjkl 2008-8-15 07:19
JB 982-77组合密封垫圈 attachment zcyjkl 2008-8-15 01935 zcyjkl 2008-8-15 07:19
JB 984-77焊接式端直通管接头体 attachment zcyjkl 2008-8-15 02210 zcyjkl 2008-8-15 07:18
JB 988-77 焊接式直通管接头体 attachment zcyjkl 2008-8-15 01834 zcyjkl 2008-8-15 07:18
JB 989-77 焊接式直角管接头体 attachment zcyjkl 2008-8-15 01601 zcyjkl 2008-8-15 07:17
JB 990-77 焊接式三通管接头体 attachment zcyjkl 2008-8-15 01763 zcyjkl 2008-8-15 07:17
JB 991-77 焊接式四通管接头体 attachment zcyjkl 2008-8-15 01957 zcyjkl 2008-8-15 07:16
JB 992-77 焊接式隔壁直通管接头体 attachment zcyjkl 2008-8-15 01925 zcyjkl 2008-8-15 07:15
JB 993-77 焊接式隔壁直角管接头体 attachment zcyjkl 2008-8-15 01533 zcyjkl 2008-8-15 07:15
JB 994-77 管接头用小六角扁螺母 attachment zcyjkl 2008-8-15 01512 zcyjkl 2008-8-15 07:14
JB 997-77 焊接式分管管接头体 attachment zcyjkl 2008-8-15 01752 zcyjkl 2008-8-15 07:13
JB 998-77焊接式铰接管接头体 attachment zcyjkl 2008-8-15 01996 zcyjkl 2008-8-15 07:13
JB 2122-77 铁素体可锻铸铁金相标准 attachment zcyjkl 2008-8-15 02052 zcyjkl 2008-8-15 07:12
JB 1001-77 内六角螺塞 attachment zcyjkl 2008-8-15 01648 zcyjkl 2008-8-15 06:45
JB 1002-77 密封垫圈 attachment zcyjkl 2008-8-15 02837 zcyjkl 2008-8-15 06:45
JB 1003-77焊接管接头、螺母、螺塞、垫圈技术条件 attachment zcyjkl 2008-8-15 01759 zcyjkl 2008-8-15 06:43
JB 1647-1977闭式单、双点压力机型式及基本参数 attachment zcyjkl 2008-8-15 01776 zcyjkl 2008-8-15 06:43
JB 1843-1977 模锻锤型式与基本参数 attachment zcyjkl 2008-8-15 01880 zcyjkl 2008-8-15 06:42
JB 1881-1977切边液压机型式与基本参数 attachment zcyjkl 2008-8-15 01890 zcyjkl 2008-8-15 06:41
JB 1883-77焊接式端直通长管接头 attachment zcyjkl 2008-8-15 01916 zcyjkl 2008-8-15 06:41
JB 1884-77 焊接式端直通长管接头体 attachment zcyjkl 2008-8-15 02150 zcyjkl 2008-8-15 06:40
JB 999-77管接头用铰接螺栓 attachment zcyjkl 2008-8-15 02067 zcyjkl 2008-8-15 06:39
JB 1954-77卡套式端直通变径管接头 attachment zcyjkl 2008-8-15 01861 zcyjkl 2008-8-15 06:39
JB 1955-77 卡套式直通变径管接头 attachment zcyjkl 2008-8-15 01580 zcyjkl 2008-8-15 06:38
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