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56264
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技术 • leunghb • 2009-12-09 11:25

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53964
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技术 • leunghb • 2009-12-09 11:23

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60879
ASTM A134-96(2005) Standard Specification for Pipe, Steel, Electric-Fusion
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技术 • leunghb • 2009-12-09 11:17

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50442
ASTM A131/A131M-08 Standard Specification for Structural Steel for Ships
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技术 • leunghb • 2009-12-09 11:11

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66545
ASTM A126-04 Standard Specification for Gray Iron Castings for Valves, Flanges
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技术 • leunghb • 2009-12-09 11:01

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58496
ASTM A125-96(2007) Standard Specification for Steel Springs, Helical
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技术 • leunghb • 2009-12-09 10:54

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55954
MASS 2010 CALL FOR PAPERS (Ei & ISTP Indexed)
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技术 • mass2010 • 2009-12-09 10:45

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79446
JJG2001---JJG2093,计量器具检定简单系统框图?
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技术 • 计量漫游 • 2009-06-18 17:17

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68067
求宜兴申大30T汽车衡最小分度值
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技术 • 计量专员 • 2009-12-09 10:32

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69605
ASTM A123/A123M-09 Standard Specification for Zinc (Hot-Dip Galvanized)
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技术 • leunghb • 2009-12-09 10:26

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52519
ASTM A111-99a(2004)e1 Standard Specification for Zinc-Coated (Galvanized)
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技术 • leunghb • 2009-12-09 10:11

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72285
ASTM A109/A109M-08 Standard Specification for Steel, Strip, Carbon
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技术 • leunghb • 2009-12-09 10:09

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31142
ASTM A108-07 Standard Specification for Steel Bar, Carbon and Alloy
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技术 • leunghb • 2009-12-09 10:04

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38762
长度类考试试题
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技术 • xuweifang • 2008-06-24 00:10

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68353
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技术 • chw • 2007-08-25 07:08

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42545
ASTM A100-07 Standard Specification for Ferrosilicon
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技术 • leunghb • 2009-12-09 08:03

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58803
ASTM A99-03(2009) Standard Specification for Ferromanganese
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技术 • leunghb • 2009-12-09 08:01

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78649
ASTM A90/A90M-09 Standard Test Method for Weight [Mass] of Coating on Iron
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技术 • leunghb • 2009-12-09 07:54

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62519
ASTM A82/A82M-07 Standard Specification for Steel Wire, Plain, for Concrete
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技术 • leunghb • 2009-12-09 07:44

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47592
形位公差国家标准
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技术 • 云天 • 2008-11-16 11:41

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29336
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技术 • 云天 • 2008-07-17 18:54

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54280
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技术 • sunnytang • 2009-11-30 19:41

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56381
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技术 • 云天 • 2008-11-26 19:22

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115058
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技术 • 我和你 • 2008-12-14 11:38

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37408
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技术 • hwcsmt • 2008-10-16 09:42