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ASME B16.26-2013 青铜扩口管用铸铜合金配件 attachment zhang1pj 2021-4-9 18:36 21713 1293003821 2022-12-29 05:58
ASTM D925-2014 橡胶特性-表面着色性(接触、色迁移及色扩散)的试验方法 attachment 孤独丶天蝎 2021-4-12 17:57 22018 manson 2022-12-20 08:19
API 570-2016 Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems (FOUR... attachment 科名仕 2021-4-9 09:49 21973 100323 2022-12-16 14:10
AATCC 127-2014 Water Resistance: Hydrostatic Pressure Test attachment 神勇皇哥 2021-12-2 10:16 23109 注定孤独终老 2022-12-14 20:25
ASME B16.47-2017 Large Diameter Steel Flanges NPS 26 Through NPS 60 Metric/Inch Standard attachment zzz159951 2021-4-11 18:02 22095 钢笔 2022-12-10 22:38
ASTM D1744-1992 用卡尔.费歇尔试剂测定液态石油产品中水分的试验方法 attachment 猎手 2021-4-12 15:44 22960 fdb18512117874 2022-10-3 02:10
ASTM D2583-2007 用巴科尔压痕器测定硬质塑料压痕硬度的试验方法 attachment aaa1334699987 2021-4-10 18:49 21695 johnc_bj 2022-9-12 09:39
ASTM A380-2006 不锈钢零件、设备及系统的清洁、除锈和钝化规程 attachment tx-liang 2021-4-11 20:27 21936 26382960 2022-8-13 04:33
AWS QC14-2009 Specification for the Certification of Welding Sales Representatives 1st Edition attachment IfI 2021-4-12 17:42 2697 2323 2022-8-13 04:12
ASTM D792-2008 用替换法测定塑料密度和比重(相对密度)的试验方法 attachment 2207635211qw 2021-4-14 09:12 22617 dd123456112 2022-8-11 08:55
ASTM D910-2004a 航空汽油规格 attachment qq1786546247 2021-4-12 08:42 22353 614556694 2022-8-8 23:08
IEEE C37.60-2012 High-voltage switchgear and controlgear. Part 111:Automatic circuit reclosers and fault interrupt... attachment 逍遥丿包子 2021-4-13 08:11 21055 158284871 2022-7-14 19:41
NSF SEPT-1999 attachment bbbbbbbbbbb 2021-12-7 22:51 2430 347284141 2022-7-14 00:34
ASTM B85-2003 铝合金模铸件规格 attachment 玩腻了 2021-12-6 07:50 21119 a2200281689 2022-7-6 20:25
UL 555-2006 UL安全标准 防火阀 attachment qq847046572 2021-4-10 01:32 21177 笑飞 2022-7-5 15:14
ASTM A370-2016 钢产品机械测试方法及定义 attachment ran110 2021-4-13 09:42 2809 科名仕 2022-7-3 15:51
AWS B5.4-2005 attachment 赤几魃 2021-4-12 10:19 22959 lyx2019989347 2022-7-3 08:57
ASTM E92-2016 Standard Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials attachment w10276 2021-4-11 01:51 22591 散人丶火凤 2022-6-1 11:35
AWS B1.11-2000 Guide for the Visual Examination of Welds attachment 132165156 2021-4-12 17:11 22947 xie627405927 2022-5-29 01:44
ASTM E18-2017e1 金属材料洛氏硬度试验方法 attachment sinid 2021-4-10 11:27 21785 受伤的小鸟 2022-5-27 00:52
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