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美国标准 今日: 0|主题: 61|排名: 148 

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AWS QC19-2002 attachment lisheng1997 2021-4-11 09:45 22271 收拾收拾 2022-4-15 01:39
SAE AMS 4640G-2005 attachment jimieguihun 2021-12-7 13:41 22743 卖梦商人 2022-4-14 09:44
ASTM E384-2017 材料努普硬度和维氏硬度试验方法 attachment 大声说 2021-4-11 18:00 21677 guangwen 2022-4-5 06:44
ASME B16.22-2013 锻铜和铜合金钎焊压力配件 attachment 990071722 2021-4-10 20:21 21281 妖刀 2022-3-24 15:42
MSS SP-55-2011 Quality Standard for Steel Castings for Valves,Flanges,Fittings,and Other Piping Components. Visual... attachment chiaho 2021-4-11 11:05 3902 1057783580 2022-3-19 08:41
ASTM E92-2017 金属材料维氏硬度和努氏硬度的标准试验方法 attachment hot. 2021-4-11 05:32 22383 774379718 2022-3-17 00:30
ASME B31.1-2007 动力管道 attachment 天龙哥 2021-4-14 11:35 21406 cnew 2022-3-15 08:54
ASTM A632-1998 普通无缝和焊接奥氏体不锈钢管(小直径)规格 attachment 99594245 2021-4-12 15:40 2611 stussyy 2022-3-14 12:12
ASTM D785-2003 塑料和电绝缘材料洛氏硬度试验方法 attachment max0514 2021-4-11 12:58 21451 886886 2022-3-13 02:05
ASTM D1822-2006 使塑料及电绝缘材料断裂所需的拉伸冲击能量的测试方法 attachment 532221749 2021-4-12 20:21 2365 livelive 2022-2-21 21:46
ASTM A959-2009 规定锻制不锈钢统一标准等级成份的指南 attachment 吕文齐 2021-4-13 14:48 21714 a53024311 2022-2-21 21:44
ASME B31.8S-2016 Managing System Integrity of Gas Pipelines (Supplement to ASME B31.8) attachment sqlhost 2021-4-13 00:08 21798 sdsadas 2022-2-9 11:13
AWS B5.1-2003 Specification for the qualification of welding inspectors incorporates errata;second printing decemb... attachment lvan 2021-4-13 12:04 22320 a1244x 2022-2-9 00:40
AWS B5.2-2001 Specification for the qualification of welding inspector specialists and welding inspector assistants attachment 澡堂 2021-4-12 10:40 22177 毒瓦斯大 2022-2-4 18:59
ASME B16.34-2017 Valves-Flanged, Threaded, And Welding End attachment qusijie123 2021-4-12 22:49 22216 走心呦 2022-2-4 13:48
AWS D17.1-2001 航空熔焊规范 attachment qq2917364959 2021-4-12 09:25 22341 qq2543482284 2022-2-1 15:32
ASTM D4355-2007 通过用氙弧光型设备曝露于光、潮气和热测定土工布变坏的试验方法 attachment .33 2021-4-10 19:53 2952 123123123 2022-1-31 13:58
AWS A3.0-2001 attachment 2MJNHVGVCGM 2021-4-10 09:42 22571 1294650461 2022-1-10 07:05
AWS B5.14-2002 attachment coltiger 2021-4-10 12:26 2773 做我怀中人 2022-1-2 04:17
ASTM D790-2017 非增强及增强型塑料及电气绝缘材料弯曲性能的标准试验方法 attachment z511278336 2021-4-10 17:59 22049 weqdsaxczdghgh 2021-12-31 12:43
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