文件名称
大小更新日期
[国外标准] API STD 20L-2018 Qualification of Polymeric Seal Manufacturers for Use in the Petroleum and Natural
6.87 MB2022-05-24
[国外标准] MSS SP-121-2006 Qualification Testing Methods for Stem Packing for Rising Stem Steel Valves
99.21 KB2020-12-02
[国外标准] AS 2980-2004 Qualification of welders for fusion welding of steels
1.81 MB2020-11-30
[国外标准] SAE J1879-1988 GENERAL QUALIFICATION AND PRODUCTION ACCEPTANCE CRITERIA FOR INTEGRATED CIRCUITS IN A
78.01 KB2020-11-30
[国外标准] JIS Z 3891:2003 Standard qualification procedure for silver brazing technique
287.58 KB2019-11-28
[国外标准] JIS Z 3871:1987 Standard qualification procedure for ultrasonic testing technique of aluminium and a
284.77 KB2019-11-28
[国外标准] JIS Z 3861:1979 Standard qualification procedure for radiographic testing technique of welds
114.25 KB2019-11-28
[国外标准] JIS Z 3851:1992 Standard qualification procedure for micro soldering technique
315.49 KB2019-11-28
[国外标准] JIS Z 3841:1997 Standard qualification procedure for semi-automatic welding technique
415.6 KB2019-11-28